1 00:00:01,568 --> 00:00:03,737 NARRATOR: Sharks, dolphins, 2 00:00:02,000 --> 00:00:07,000 Downloaded from YTS.MX 3 00:00:03,803 --> 00:00:06,940 an epic war waged beneath the waves. 4 00:00:07,007 --> 00:00:08,775 MAN: He's got a dolphin in his mouth! 5 00:00:08,000 --> 00:00:13,000 Official YIFY movies site: YTS.MX 6 00:00:08,842 --> 00:00:10,910 NARRATOR: Brain against brawn. 7 00:00:10,977 --> 00:00:13,113 MAN: Oi, they're fighting, they're fighting. Oh, (bleep)! 8 00:00:13,179 --> 00:00:14,981 WOMAN: Dolphins are very capable predators 9 00:00:15,048 --> 00:00:16,249 in their own right. 10 00:00:16,316 --> 00:00:18,084 MAN: People forget that killer whales 11 00:00:18,151 --> 00:00:19,719 are actually dolphins. 12 00:00:19,786 --> 00:00:22,455 MAN: I've never ever seen anything like this before. 13 00:00:22,522 --> 00:00:24,024 NARRATOR: Now for the first time, 14 00:00:24,090 --> 00:00:28,395 a chance to see how these gangs of the deep go to war. 15 00:00:28,461 --> 00:00:30,163 Can there be a truce? 16 00:00:30,230 --> 00:00:34,901 Or are these top predators locked in a blood battle? 17 00:00:37,303 --> 00:00:41,741 Off Australia, predators stalk their prey. 18 00:00:41,808 --> 00:00:44,944 These are called false killer whales, 19 00:00:45,011 --> 00:00:47,447 but they're actually dolphins, 20 00:00:47,514 --> 00:00:49,516 just super-sized. 21 00:00:49,582 --> 00:00:51,951 They grow up to 20 feet long 22 00:00:52,018 --> 00:00:54,521 and travel in pods of 10 or more. 23 00:00:56,756 --> 00:01:00,527 Today they're on the hunt for shark. 24 00:01:01,995 --> 00:01:04,230 The pod gives chase. 25 00:01:05,832 --> 00:01:08,134 The shark can't outswim them. 26 00:01:09,269 --> 00:01:11,671 The dolphins work as a team, 27 00:01:11,738 --> 00:01:13,640 box in the shark, 28 00:01:14,307 --> 00:01:16,476 and move in for the kill. 29 00:01:19,412 --> 00:01:21,147 FRANCES FARABAUGH: Dolphins are very capable predators 30 00:01:21,214 --> 00:01:22,615 in their own right. 31 00:01:22,682 --> 00:01:25,285 NARRATOR: Frances Farabaugh is a shark biologist 32 00:01:25,385 --> 00:01:27,787 at Florida International University. 33 00:01:27,887 --> 00:01:29,222 FRANCES: I feel like there's this conception 34 00:01:29,289 --> 00:01:32,225 in the general public that dolphins are the heroes 35 00:01:32,292 --> 00:01:34,861 and sharks are the antagonists or the villains. 36 00:01:35,361 --> 00:01:37,497 NARRATOR: When it comes to the fierce relationship 37 00:01:37,564 --> 00:01:41,768 between dolphins and sharks, there's a lot we get wrong 38 00:01:41,835 --> 00:01:45,138 and a lot more that we don't even know. 39 00:01:45,205 --> 00:01:47,273 FRANCES: Both of these organisms are predators 40 00:01:47,340 --> 00:01:49,909 that are making smart, intelligent decisions 41 00:01:50,043 --> 00:01:52,846 about how to survive and how to feed. 42 00:01:52,912 --> 00:01:54,848 NARRATOR: Primal decisions that often bring 43 00:01:54,914 --> 00:01:58,852 these two top predators into conflict. 44 00:01:58,918 --> 00:02:02,422 In some areas, 30% of the dolphin population 45 00:02:02,489 --> 00:02:05,425 bear the marks of shark encounters. 46 00:02:05,492 --> 00:02:08,461 And that's on the dolphins that survived. 47 00:02:08,561 --> 00:02:11,698 But even smaller dolphins aren't defenseless. 48 00:02:11,764 --> 00:02:16,302 They wield a powerful arsenal of weapons to combat sharks. 49 00:02:16,369 --> 00:02:19,372 FRANCES: It's a mistake to think of dolphins versus sharks 50 00:02:19,439 --> 00:02:22,142 as some kind of mismatched pairing. 51 00:02:22,208 --> 00:02:23,476 There are advantages and disadvantages, 52 00:02:23,543 --> 00:02:25,645 but they're quite evenly matched. 53 00:02:26,412 --> 00:02:29,382 NARRATOR: Frances is on an expedition to gain insight 54 00:02:29,449 --> 00:02:33,820 into the battle between sharks and dolphins. 55 00:02:33,887 --> 00:02:37,490 She teams up with research specialist Kirk Gastrich 56 00:02:37,557 --> 00:02:39,325 on the far side of the world 57 00:02:39,392 --> 00:02:41,461 in what might be the bloodiest front 58 00:02:41,528 --> 00:02:43,997 in the shark-dolphin war: 59 00:02:44,464 --> 00:02:47,200 a place called Shark Bay. 60 00:02:47,867 --> 00:02:49,202 KIRK GASTRICH: In Shark Bay, we know that 61 00:02:49,269 --> 00:02:52,405 there are these interactions between sharks and dolphins. 62 00:02:52,472 --> 00:02:54,941 The amount of dolphins with shark-inflicted wounds 63 00:02:55,008 --> 00:02:57,377 on them is really, really high here. 64 00:02:57,977 --> 00:03:00,847 FRANCES: We know that around 75% of dolphins here 65 00:03:00,914 --> 00:03:04,350 show scars from interactions with sharks. 66 00:03:04,951 --> 00:03:06,953 NARRATOR: On the western tip of Australia, 67 00:03:07,020 --> 00:03:10,557 Shark Bay is a sprawling natural preserve. 68 00:03:10,623 --> 00:03:14,360 3.2 million acres of pristine marine habitat, 69 00:03:14,427 --> 00:03:17,230 overflowing with fish and squid. 70 00:03:17,297 --> 00:03:19,098 A dolphin paradise. 71 00:03:19,165 --> 00:03:20,767 Only one problem. 72 00:03:20,833 --> 00:03:21,868 KIRK: They call it Shark Bay 73 00:03:21,935 --> 00:03:25,505 because this place is just loaded with sharks. 74 00:03:25,572 --> 00:03:28,741 NARRATOR: Frances and Kirk have a lot of ground to cover. 75 00:03:28,808 --> 00:03:31,044 Their floating laboratory for the next week 76 00:03:31,110 --> 00:03:34,414 is the 120-foot ship Infamis. 77 00:03:34,480 --> 00:03:36,616 ASH: Straight in here, guys. Welcome aboard. 78 00:03:36,683 --> 00:03:37,917 FRANCES: Thank you. 79 00:03:37,984 --> 00:03:39,752 NARRATOR: Rounding out the expedition team 80 00:03:39,819 --> 00:03:42,255 are Ash Sutton, the ship's captain... 81 00:03:42,322 --> 00:03:43,289 ASH SUTTON: If you've come looking for sharks, 82 00:03:43,356 --> 00:03:44,857 this is the hot spot around here. 83 00:03:44,924 --> 00:03:48,061 NARRATOR: ...and Duncan Brake, an underwater cinematographer 84 00:03:48,194 --> 00:03:52,298 who's been filming both sharks and dolphins for 20 years. 85 00:03:52,365 --> 00:03:53,600 DUNCAN BRAKE: Dolphins seem to have 86 00:03:53,666 --> 00:03:56,202 a bit of this love/hate relationship with sharks. 87 00:03:56,269 --> 00:03:58,705 I don't know, but there definitely seems to be 88 00:03:58,771 --> 00:04:01,774 this dichotomous relationship between the two species. 89 00:04:03,776 --> 00:04:05,945 NARRATOR: The mission on the expedition: 90 00:04:06,012 --> 00:04:09,949 capture video evidence of shark/dolphin combat. 91 00:04:10,016 --> 00:04:12,952 They hope to detail how sharks outsmart 92 00:04:13,019 --> 00:04:15,922 one of the most intelligent animals on Earth, 93 00:04:15,989 --> 00:04:18,224 and find out how dolphins evade 94 00:04:18,291 --> 00:04:21,361 one of nature's most efficient killers. 95 00:04:21,461 --> 00:04:24,597 To get the footage, the team has custom-built cameras 96 00:04:24,664 --> 00:04:26,566 to attach to shark fins. 97 00:04:26,633 --> 00:04:28,501 KIRK: We know that there are interactions, 98 00:04:28,568 --> 00:04:33,473 but we haven't really seen them with our own eyes. 99 00:04:33,539 --> 00:04:36,576 NARRATOR: Do the sharks hunt during the day or night? 100 00:04:36,643 --> 00:04:39,312 Do they target the sick or injured? 101 00:04:39,379 --> 00:04:43,082 All questions the fin cam can help answer. 102 00:04:46,019 --> 00:04:51,724 About 5,000 dolphins call these waters home despite the sharks. 103 00:04:51,791 --> 00:04:54,861 They've figured out not just how to survive 104 00:04:54,927 --> 00:04:56,429 but how to thrive. 105 00:04:56,496 --> 00:04:58,564 FRANCES: There are lots of strategies and advantages 106 00:04:58,631 --> 00:05:01,801 that dolphins have when they're trying to defend themselves. 107 00:05:01,868 --> 00:05:05,705 One of them is that they're very social animals. 108 00:05:05,772 --> 00:05:08,374 We know that, through research, they tend to hang out 109 00:05:08,441 --> 00:05:10,610 in larger groups when they feel they're more vulnerable, 110 00:05:10,677 --> 00:05:12,845 like at night and when they're resting. 111 00:05:12,912 --> 00:05:16,049 NARRATOR: They also live and work together in pods, 112 00:05:16,115 --> 00:05:19,319 a cooperative that not only provides protection 113 00:05:19,419 --> 00:05:22,322 but is an effective means to hunt prey. 114 00:05:22,388 --> 00:05:24,624 FRANCES: They're very fast, they're very strong, 115 00:05:24,724 --> 00:05:26,326 and they easily outmaneuver a shark. 116 00:05:26,392 --> 00:05:27,827 So, it's important not to think of them 117 00:05:27,894 --> 00:05:31,130 as some kind of David versus Goliath. 118 00:05:31,230 --> 00:05:35,368 Dolphins are powerful, incredible predators. 119 00:05:35,435 --> 00:05:38,838 NARRATOR: Sharks don't play well with others. 120 00:05:38,905 --> 00:05:41,307 There are no shark pods. 121 00:05:41,374 --> 00:05:43,242 They're solitary hunters. 122 00:05:43,309 --> 00:05:44,944 And in this part of the world, 123 00:05:45,011 --> 00:05:48,715 the number one threat to dolphins is the tiger shark. 124 00:05:48,781 --> 00:05:50,216 FRANCES: From a dolphin's perspective, 125 00:05:50,283 --> 00:05:52,218 a tiger shark is always a danger, 126 00:05:52,285 --> 00:05:53,920 because it only takes one slip-up 127 00:05:53,986 --> 00:05:56,556 for you to be consumed by a shark. 128 00:05:56,622 --> 00:05:58,291 NARRATOR: Tiger sharks have earned themselves 129 00:05:58,391 --> 00:06:00,093 a nasty reputation. 130 00:06:00,159 --> 00:06:01,394 DUNCAN: As an underwater cameraman, 131 00:06:01,461 --> 00:06:04,297 you can be literally be covered in other shark species, 132 00:06:04,397 --> 00:06:08,234 but then that big, old tiger shark will roll into town, 133 00:06:08,301 --> 00:06:11,104 and you are looking at that one big tiger. 134 00:06:11,170 --> 00:06:13,172 NARRATOR: Named for their distinctive stripes, 135 00:06:13,272 --> 00:06:17,176 these apex predators can top 14 feet. 136 00:06:17,276 --> 00:06:20,913 And they have an outsized appetite to match. 137 00:06:20,980 --> 00:06:24,584 Unlike white sharks, which use their immense power and speed 138 00:06:24,650 --> 00:06:26,919 to take down seals and dolphins, 139 00:06:26,986 --> 00:06:30,189 tigers are all about a casual kill. 140 00:06:30,289 --> 00:06:31,290 DUNCAN: I think tiger sharks 141 00:06:31,391 --> 00:06:33,626 are gonna sneak up on something and grab it 142 00:06:33,693 --> 00:06:35,194 instead of actually having to chase it around 143 00:06:35,261 --> 00:06:36,996 all over the ocean. 144 00:06:37,063 --> 00:06:39,932 NARRATOR: Video footage of tiger sharks fighting dolphins 145 00:06:39,999 --> 00:06:44,137 is extremely rare and extremely hard to capture. 146 00:06:44,203 --> 00:06:45,805 But if the team can get it, 147 00:06:45,872 --> 00:06:50,176 the footage could unlock the secrets of this unseen war. 148 00:06:52,211 --> 00:06:55,481 The first step is to find the sharks. 149 00:06:55,548 --> 00:07:00,219 The team uses a baited remote underwater video, or BRUV. 150 00:07:00,319 --> 00:07:03,856 FRANCES: With BRUVs, I drop a frame with a camera 151 00:07:03,923 --> 00:07:05,758 and some bait down to the bottom of the ocean. 152 00:07:05,825 --> 00:07:07,994 I pull that back up, and then I watch the video through 153 00:07:08,060 --> 00:07:10,096 to see what showed up. 154 00:07:10,163 --> 00:07:17,036 ♪ ♪ 155 00:07:17,103 --> 00:07:19,172 Make sure that that bait arm is pointing down current, 156 00:07:19,238 --> 00:07:20,440 and just make sure it's... 157 00:07:20,506 --> 00:07:23,376 NARRATOR: Strong currents can easily topple the BRUV, 158 00:07:23,443 --> 00:07:26,078 so Duncan will check it out on the bottom. 159 00:07:55,675 --> 00:07:57,643 NARRATOR: Sharks can easily detect prey 160 00:07:57,710 --> 00:08:00,413 through clouds of muck. 161 00:08:00,513 --> 00:08:02,114 FRANCES: Sharks sort of have a sixth sense. 162 00:08:02,181 --> 00:08:04,217 They can sort of electrorecept. 163 00:08:04,283 --> 00:08:07,987 So they have these little organs towards the front of their noses 164 00:08:08,054 --> 00:08:09,622 that are called ampullae of Lorenzini. 165 00:08:09,689 --> 00:08:11,958 They kind of detect little electrical currents. 166 00:08:12,024 --> 00:08:13,192 And so they're not relying 167 00:08:13,259 --> 00:08:16,562 necessarily exclusively on sight to hunt. 168 00:08:23,436 --> 00:08:26,138 NARRATOR: Remoras are fish that cling to sharks. 169 00:08:26,205 --> 00:08:30,076 They swim alongside and feed on the host's scraps. 170 00:08:30,142 --> 00:08:32,311 FRANCES: Large remora, maybe a large shark nearby. 171 00:08:41,721 --> 00:08:43,623 NARRATOR: A large remora could mean 172 00:08:43,689 --> 00:08:47,126 that a very large shark is closing in. 173 00:08:48,528 --> 00:08:51,998 FRANCES: I didn't read that. Can you say again? 174 00:08:52,064 --> 00:08:54,333 Duncan, Duncan, test, test, can you hear me? 175 00:09:01,707 --> 00:09:03,009 FRANCES: Excellent. 176 00:09:03,075 --> 00:09:04,744 NARRATOR: The BRUV is rolling. 177 00:09:04,810 --> 00:09:06,345 They'll leave it for a day 178 00:09:06,412 --> 00:09:09,782 and then find out if they're in the right spot for sharks. 179 00:09:09,849 --> 00:09:10,816 DUNCAN: With this visibility, 180 00:09:10,883 --> 00:09:12,652 it's probably time to get out of the water 181 00:09:12,718 --> 00:09:15,922 and let the BRUV do its work, I think. 182 00:09:15,988 --> 00:09:19,559 NARRATOR: Stories abound of sharks sneaking up on swimmers, 183 00:09:19,659 --> 00:09:22,361 and dolphins zooming to the rescue. 184 00:09:24,096 --> 00:09:27,733 In 2018, off the coast of Australia, 185 00:09:27,800 --> 00:09:30,670 a snorkeler diving with a pod of dolphins 186 00:09:30,736 --> 00:09:33,639 suddenly spots a Galapagos shark. 187 00:09:35,174 --> 00:09:36,809 These large predators are known 188 00:09:36,876 --> 00:09:41,047 to take down seals and sea lions. 189 00:09:41,113 --> 00:09:45,751 Before long, more sharks appear, 190 00:09:45,818 --> 00:09:48,321 and they're getting closer. 191 00:09:48,387 --> 00:09:51,824 But he hardly believes what happens next. 192 00:09:51,891 --> 00:09:54,493 (dolphins squeaking) 193 00:09:54,560 --> 00:09:57,530 A pair of dolphins charge 194 00:09:57,597 --> 00:09:59,799 and scatter the threatening sharks. 195 00:09:59,865 --> 00:10:02,401 (squeaking) 196 00:10:02,468 --> 00:10:06,038 A dolphin pod has safety in numbers. 197 00:10:06,138 --> 00:10:11,811 When the matchup is one-on-one, it's usually a different story. 198 00:10:11,877 --> 00:10:15,014 MAN: He's got a dolphin in his mouth! 199 00:10:15,081 --> 00:10:17,350 NARRATOR: Recently, two Australian oystermen 200 00:10:17,416 --> 00:10:21,854 capture this savage struggle up close. 201 00:10:21,921 --> 00:10:24,590 JASON DARKE: I've never, ever seen anything like this before. 202 00:10:24,657 --> 00:10:26,959 Only on TV, and even then, it's rare. 203 00:10:27,226 --> 00:10:29,095 We were going about eight kilometers out. 204 00:10:29,161 --> 00:10:30,997 We were probably halfway there 205 00:10:31,063 --> 00:10:34,533 when off in the distance we noticed a fin 206 00:10:34,600 --> 00:10:37,436 which we assumed straightaway would be a dolphin. 207 00:10:37,536 --> 00:10:39,171 A dolphin. It's a dolphin. 208 00:10:39,238 --> 00:10:40,673 Jai, here, hold my phone. 209 00:10:40,740 --> 00:10:43,376 JAI DARKE: And once we realized the size of it, 210 00:10:43,442 --> 00:10:45,544 there's no curve in the back of it, 211 00:10:45,611 --> 00:10:49,115 we realized that it was not a dolphin. 212 00:10:49,215 --> 00:10:51,484 JASON: This was much bigger than a dolphin fin, 213 00:10:51,584 --> 00:10:53,285 much, much bigger. 214 00:10:59,225 --> 00:11:00,426 JASON: The shark we knew straightaway 215 00:11:00,493 --> 00:11:02,628 was a great white shark. 216 00:11:02,728 --> 00:11:05,297 It would've been approximately 10 to 12 foot. 217 00:11:05,364 --> 00:11:06,766 Rather large. 218 00:11:06,832 --> 00:11:09,435 He's coming this way, he's coming this way. 219 00:11:09,502 --> 00:11:11,570 He's coming right to us. 220 00:11:11,637 --> 00:11:14,407 He's got a dolphin in his mouth! 221 00:11:14,473 --> 00:11:17,510 He just swam straight past us with a dolphin in his mouth. 222 00:11:17,610 --> 00:11:20,179 JAI: This is (bleep) you see on Nat Geo Wild. 223 00:11:20,246 --> 00:11:23,582 NARRATOR: But then things get wilder. 224 00:11:23,649 --> 00:11:25,651 JASON: So, we'd been watching the shark for a while, 225 00:11:25,718 --> 00:11:28,054 and I was carefully following the shark 226 00:11:28,120 --> 00:11:29,755 as it was swimming away with the dolphin, 227 00:11:29,822 --> 00:11:32,958 when, all of a sudden, out of nowhere... 228 00:11:33,025 --> 00:11:34,126 Oh, my god, another one, another one! 229 00:11:34,193 --> 00:11:37,763 JAI: Oi, oi, oi! Oh, (bleep)! Oh, (bleep)! 230 00:11:40,032 --> 00:11:41,300 JASON: Oh, my god, another one, another one! 231 00:11:41,367 --> 00:11:43,602 JAI: Oi, oi, massive one, massive one! 232 00:11:43,669 --> 00:11:46,238 Oh, (bleep)! Oh, (bleep)! 233 00:11:46,305 --> 00:11:48,074 Look at it! 234 00:11:48,140 --> 00:11:50,543 Oh, that just come out from underneath the boat. 235 00:11:50,609 --> 00:11:52,445 The moment I saw the second shark, 236 00:11:52,511 --> 00:11:55,514 adrenaline started pumping through my veins. 237 00:11:55,581 --> 00:11:58,217 I didn't know what just happened. 238 00:11:58,284 --> 00:11:59,385 Oh! 239 00:11:59,452 --> 00:12:01,887 That scared the (bleep) out of me! 240 00:12:01,954 --> 00:12:03,923 JASON: The second shark was bigger than the first. 241 00:12:03,989 --> 00:12:06,125 It would've been 12 to 14 foot, probably, 242 00:12:06,192 --> 00:12:07,693 but it was definitely bigger. 243 00:12:08,194 --> 00:12:09,695 JAI: It was huge. 244 00:12:09,795 --> 00:12:11,464 Oi, they're fighting, they're fighting, 245 00:12:11,530 --> 00:12:12,865 they're fighting, they're fighting! 246 00:12:12,932 --> 00:12:15,234 Oh! Oh, (bleep)! 247 00:12:15,301 --> 00:12:18,104 He just stole that dolphin! 248 00:12:18,170 --> 00:12:19,972 He just stole the dolphin! 249 00:12:20,039 --> 00:12:21,540 Oh, he's massive! 250 00:12:21,607 --> 00:12:23,576 Oh! 251 00:12:23,642 --> 00:12:25,377 JASON: Look at the size of the thing! 252 00:12:25,444 --> 00:12:27,813 NARRATOR: A dolphin is worth fighting over. 253 00:12:27,880 --> 00:12:30,316 FRANCES: We do know that if a shark gets the opportunity 254 00:12:30,382 --> 00:12:33,886 to eat a dolphin, they absolutely will. 255 00:12:33,953 --> 00:12:37,022 And in fact, it's a really prized food source. 256 00:12:37,089 --> 00:12:39,759 Like many marine mammals, dolphins have all this blubber, 257 00:12:39,825 --> 00:12:42,328 so that's a good nutritious meal. 258 00:12:42,394 --> 00:12:44,597 NARRATOR: From the injuries, it's clear the dolphin 259 00:12:44,663 --> 00:12:48,567 was initially attacked from behind and below. 260 00:12:48,634 --> 00:12:49,735 JASON: He swam straight past us 261 00:12:49,802 --> 00:12:51,237 with a dolphin in his mouth. 262 00:12:51,303 --> 00:12:54,607 NARRATOR: How did the shark get past this dolphin's defenses? 263 00:12:54,673 --> 00:12:57,676 FRANCES: Dolphins are really quite zippy. 264 00:12:57,743 --> 00:13:00,112 They can outmaneuver a shark fairly easily, 265 00:13:00,212 --> 00:13:03,949 especially if they're in deeper or open water spaces. 266 00:13:05,718 --> 00:13:07,520 NARRATOR: To understand how sharks catch 267 00:13:07,586 --> 00:13:10,956 these slippery creatures, the team heads to a beach 268 00:13:11,023 --> 00:13:15,961 that offers a unique look at Shark Bay's dolphins. 269 00:13:16,028 --> 00:13:19,865 FRANCES: So, we're right now at Monkey Mia in Shark Bay. 270 00:13:19,932 --> 00:13:21,267 There has been 20 years 271 00:13:21,333 --> 00:13:24,170 of really incredible ecological and biological research 272 00:13:24,236 --> 00:13:26,772 on the interactions between sharks and dolphins. 273 00:13:26,839 --> 00:13:30,075 NARRATOR: Dolphins were first drawn here in the 1960s 274 00:13:30,142 --> 00:13:32,545 by fishermen sharing their catch. 275 00:13:32,611 --> 00:13:36,582 Today the site is regulated by the Parks and Wildlife Service. 276 00:13:36,649 --> 00:13:38,083 FRANCES: We have some friendly dolphins that come here 277 00:13:38,150 --> 00:13:40,920 very regularly, and we get to see them up close and personal, 278 00:13:40,986 --> 00:13:42,588 which is really special. 279 00:13:42,655 --> 00:13:45,858 NARRATOR: No need for a baited underwater camera. 280 00:13:45,925 --> 00:13:48,661 Here, dolphins come to you. 281 00:13:48,761 --> 00:13:50,996 And they're covered in scars. 282 00:13:51,063 --> 00:13:53,732 FRANCES: So this individual that's just approaching us 283 00:13:53,799 --> 00:13:55,234 just now is called Piccolo. 284 00:13:55,301 --> 00:13:57,870 And you can see on her dorsal and on her back, 285 00:13:57,937 --> 00:14:01,040 she's got scars from encounters with sharks. 286 00:14:01,106 --> 00:14:02,374 Dolphins make this trade-off. 287 00:14:02,441 --> 00:14:04,577 A lot of the food that they want most 288 00:14:04,643 --> 00:14:06,679 and the easy fishing grounds, the yummy fish, 289 00:14:06,745 --> 00:14:08,948 occur around shallow seagrass beds. 290 00:14:09,014 --> 00:14:11,684 Unfortunately, that's also where tiger sharks 291 00:14:11,750 --> 00:14:13,752 preferentially like to hunt. 292 00:14:13,819 --> 00:14:15,120 NARRATOR: To protect themselves, 293 00:14:15,187 --> 00:14:18,757 dolphins have a secret weapon: echolocation. 294 00:14:18,824 --> 00:14:20,759 They can send out a beam of sound 295 00:14:20,826 --> 00:14:23,863 from a fatty part of their head, called the melon. 296 00:14:23,929 --> 00:14:27,066 The sound beam bounces back and forms a mental image 297 00:14:27,132 --> 00:14:29,535 in the dolphin's brain of the world around them. 298 00:14:29,602 --> 00:14:31,637 FRANCES: Echolocation is the way that dolphins have to see 299 00:14:31,704 --> 00:14:33,906 in dark and low-lit environments. 300 00:14:33,973 --> 00:14:36,809 Basically, it's like radar or sonar. 301 00:14:36,876 --> 00:14:39,879 NARRATOR: But there are limits to this superpower. 302 00:14:39,945 --> 00:14:42,314 FRANCES: So, it works kind of like wide beams on a flashlight. 303 00:14:42,381 --> 00:14:44,450 They can only see kind of directly ahead of them 304 00:14:44,516 --> 00:14:45,885 or to the sides. 305 00:14:45,951 --> 00:14:48,387 So, if they get attacked from the back or from underneath, 306 00:14:48,454 --> 00:14:50,756 they probably won't see the predator coming. 307 00:14:50,823 --> 00:14:52,791 NARRATOR: Dolphins have a blind spot, 308 00:14:52,858 --> 00:14:54,360 and sharks know it. 309 00:14:56,829 --> 00:14:58,998 NARRATOR: Great whites use their massive power 310 00:14:59,098 --> 00:15:03,135 to charge from beneath in a breach attack. 311 00:15:03,202 --> 00:15:04,470 KIRK: White sharks you would consider 312 00:15:04,536 --> 00:15:06,338 more of an ambush predator. 313 00:15:06,405 --> 00:15:07,840 FRANCES: It's probably the shark that you don't see 314 00:15:07,907 --> 00:15:09,108 that you worry about, 315 00:15:09,208 --> 00:15:12,077 because a lot of white sharks rely on surprise. 316 00:15:12,144 --> 00:15:14,813 They're stealth predators. 317 00:15:14,880 --> 00:15:17,716 NARRATOR: It's easy to sneak up on a lone dolphin, 318 00:15:17,783 --> 00:15:20,786 but the safety of the pod can stop an ambush, 319 00:15:20,853 --> 00:15:23,522 even from a great white. 320 00:15:23,589 --> 00:15:26,692 A white shark swims with a group of dolphins. 321 00:15:28,394 --> 00:15:31,497 The ocean-going mammals show no concern 322 00:15:31,563 --> 00:15:34,433 for the killer in their midst. 323 00:15:34,500 --> 00:15:37,770 Their ability to communicate and spot their stalker 324 00:15:37,836 --> 00:15:41,173 gives the shark no chance at an attack. 325 00:15:42,908 --> 00:15:45,945 The team heads out to search for more scarring, 326 00:15:46,011 --> 00:15:50,082 and more signs of shark/dolphin battles. 327 00:15:50,182 --> 00:15:53,419 FRANCES: To our port now just a little bit. 328 00:15:53,485 --> 00:15:54,653 10, 11 o'clock. 329 00:15:54,720 --> 00:15:56,855 Maybe 100 meters out. 330 00:15:59,725 --> 00:16:02,261 KIRK: So, we've got one dolphin up here. 331 00:16:02,328 --> 00:16:05,331 Appears just to be logging or just resting at the surface. 332 00:16:05,397 --> 00:16:08,233 FRANCES: It definitely has scars. 333 00:16:08,300 --> 00:16:09,468 KIRK: That's the thing about dolphins, though, 334 00:16:09,568 --> 00:16:12,972 if they don't wanna stick around, they don't. 335 00:16:13,038 --> 00:16:14,406 NARRATOR: It's a perfect display 336 00:16:14,473 --> 00:16:18,310 of another dolphin defensive weapon: speed. 337 00:16:18,377 --> 00:16:21,313 They can reach up to 22 miles per hour. 338 00:16:21,380 --> 00:16:25,184 A simple flick of the tail and they leave a trail of bubbles, 339 00:16:25,250 --> 00:16:29,588 able to outswim most predators, including sharks. 340 00:16:29,655 --> 00:16:33,058 But there's a shark that's even faster. 341 00:16:33,158 --> 00:16:35,361 The mako. 342 00:16:35,427 --> 00:16:38,564 DUNCAN: Mako sharks are one of the fastest fish in the sea. 343 00:16:38,630 --> 00:16:40,366 And compared to other sharks, 344 00:16:40,432 --> 00:16:43,736 their speed and agility cannot compare. 345 00:16:43,802 --> 00:16:47,206 NARRATOR: Mako sharks are torpedoes with teeth. 346 00:16:47,272 --> 00:16:50,075 Blasting up to 45 miles per hour; 347 00:16:50,175 --> 00:16:53,278 twice as fast as dolphins. 348 00:16:53,345 --> 00:16:54,546 (woman screams) 349 00:16:54,613 --> 00:16:56,081 WOMAN: Shark right here! 350 00:16:56,148 --> 00:16:59,018 NARRATOR: Near Maui, Hawaii, Captain Steve Lawless 351 00:16:59,084 --> 00:17:03,155 captures a mako and dolphin encounter off his snorkel boat. 352 00:17:03,222 --> 00:17:04,323 (scream) 353 00:17:04,390 --> 00:17:06,025 MAN: He's got the dolphin in his mouth. 354 00:17:06,091 --> 00:17:08,660 NARRATOR: The mako has the dolphin by the tail; 355 00:17:08,727 --> 00:17:12,731 a sure sign that the shark outswam its panicked prey. 356 00:17:12,798 --> 00:17:14,033 MAN: Has he swallowed the dolphin 357 00:17:14,099 --> 00:17:16,168 or is the dolphin hanging out of his mouth? 358 00:17:16,235 --> 00:17:18,170 DUNCAN: I think a dolphin could quite easily 359 00:17:18,237 --> 00:17:19,638 outmaneuver a tiger shark. 360 00:17:19,705 --> 00:17:21,907 However, if we brought a mako shark to the table, 361 00:17:21,974 --> 00:17:23,375 not a chance. 362 00:17:23,442 --> 00:17:24,777 WOMAN: This is crazy! 363 00:17:24,843 --> 00:17:27,046 NARRATOR: Luckily for the dolphins of Shark Bay, 364 00:17:27,112 --> 00:17:29,848 there aren't many makos here. 365 00:17:29,948 --> 00:17:32,851 But there are tigers, and the team wants to know 366 00:17:32,951 --> 00:17:36,321 if they're in the right place to capture one. 367 00:17:36,388 --> 00:17:39,525 Step one: retrieve the BRUV. 368 00:17:39,591 --> 00:17:41,126 DUNCAN: How'd you guys do? 369 00:17:41,193 --> 00:17:42,628 Everything back in one piece? 370 00:17:42,694 --> 00:17:44,063 FRANCES: Everything's back in one piece. 371 00:17:44,129 --> 00:17:47,366 DUNCAN: I can't wait to see what was down there with that remora. 372 00:17:47,433 --> 00:17:49,768 NARRATOR: Is the footage binge-worthy? 373 00:17:49,835 --> 00:17:54,573 ♪ ♪ 374 00:17:54,640 --> 00:17:57,376 Success: tigers on camera. 375 00:17:57,443 --> 00:17:59,745 The team is in the right spot. 376 00:17:59,812 --> 00:18:01,280 FRANCES: We know from BRUVs that this is an area 377 00:18:01,380 --> 00:18:05,284 that has a lot of tiger sharks and many different habitats. 378 00:18:05,350 --> 00:18:08,087 What we don't have evidence of on these BRUVs 379 00:18:08,153 --> 00:18:10,355 is exactly what the sharks are eating. 380 00:18:10,422 --> 00:18:13,826 NARRATOR: To really understand the shark/dolphin relationship, 381 00:18:13,892 --> 00:18:18,197 Frances wants to capture a shark's-eye view of Shark Bay. 382 00:18:18,263 --> 00:18:21,066 FRANCES: So, basically, what this is, is it's our fin camera. 383 00:18:21,133 --> 00:18:25,337 What happens is we'll slot this over the fin of the tiger shark, 384 00:18:25,404 --> 00:18:27,840 and we'll send it on its merry way. 385 00:18:27,906 --> 00:18:31,477 KIRK: Alright, good to go? FRANCES: Good to go. 386 00:18:31,543 --> 00:18:33,078 KIRK: Okay, got that? 387 00:18:33,145 --> 00:18:35,414 NARRATOR: They set up a series of baited hooks 388 00:18:35,481 --> 00:18:36,849 called a drumline. 389 00:18:36,915 --> 00:18:38,851 FRANCES: Ready to go. 390 00:18:38,917 --> 00:18:40,152 KIRK: Alright, going over. 391 00:18:40,219 --> 00:18:41,587 Alright, we're on bottom. 392 00:18:44,389 --> 00:18:45,324 FRANCES: One down. 393 00:18:45,390 --> 00:18:46,658 KIRK: One down, four to go. 394 00:18:46,725 --> 00:18:49,595 FRANCES: Alright, let's get the next one set. 395 00:18:49,661 --> 00:18:52,164 NARRATOR: They check the lines every 30 minutes 396 00:18:52,231 --> 00:18:55,100 to ensure no shark is harmed. 397 00:18:55,167 --> 00:18:56,802 FRANCES: Got a shark on the line. 398 00:18:56,869 --> 00:18:58,137 KIRK: Just want to see what we got. 399 00:18:58,203 --> 00:18:59,204 Coming up! 400 00:18:59,271 --> 00:19:01,573 Hooked good. 401 00:19:01,640 --> 00:19:02,741 Coming under, coming under. 402 00:19:02,808 --> 00:19:04,810 FRANCES: Alright, ready to go on that. 403 00:19:04,877 --> 00:19:07,012 KIRK: Okay, on zero. 404 00:19:07,112 --> 00:19:08,680 FRANCES: Zeroed. 405 00:19:08,747 --> 00:19:10,315 Hold on. 406 00:19:10,382 --> 00:19:14,253 KIRK: Watch it, Frances, watch it. 407 00:19:14,319 --> 00:19:16,622 I'm losing the head here. 408 00:19:18,524 --> 00:19:19,558 FRANCES: Oh! 409 00:19:22,961 --> 00:19:25,397 NARRATOR: There's a primal conflict down in the deep: 410 00:19:25,464 --> 00:19:28,267 dolphins and sharks. 411 00:19:28,367 --> 00:19:29,368 MAN: Shark. WOMAN: Shark. 412 00:19:29,434 --> 00:19:31,270 JAI: Oh, he's massive! 413 00:19:31,370 --> 00:19:32,504 (scream) 414 00:19:32,571 --> 00:19:35,974 JAI: They're fighting, they're fighting! Oh! 415 00:19:36,041 --> 00:19:37,876 KIRK: Okay, on zero. 416 00:19:37,943 --> 00:19:39,378 FRANCES: Zeroed. 417 00:19:42,281 --> 00:19:44,349 KIRK: Watch it, Frances, watch it. 418 00:19:46,285 --> 00:19:48,487 I'm losing the head here. 419 00:19:48,554 --> 00:19:50,656 FRANCES: Oh! 420 00:19:50,722 --> 00:19:53,158 NARRATOR: Shark researchers Frances Farabaugh, 421 00:19:53,225 --> 00:19:56,295 Kirk Gastrich and cameraman Duncan Brake 422 00:19:56,361 --> 00:19:58,297 are at one of the fiercest battlegrounds 423 00:19:58,397 --> 00:20:03,302 in this ferocious struggle: Shark Bay, Australia. 424 00:20:03,368 --> 00:20:04,836 FRANCES: Many of the dolphins that we've seen 425 00:20:04,903 --> 00:20:08,006 have shown lots of evidence of encounters with sharks, 426 00:20:08,073 --> 00:20:10,609 very specific scarring and bite marks. 427 00:20:10,676 --> 00:20:13,145 So we know that these interactions are occurring. 428 00:20:13,212 --> 00:20:14,246 NARRATOR: Their mission: 429 00:20:14,313 --> 00:20:17,015 capture direct evidence of these battles 430 00:20:17,115 --> 00:20:21,186 and observe offense and defense in action. 431 00:20:21,253 --> 00:20:23,655 Which strategies work? 432 00:20:23,722 --> 00:20:25,123 Which don't? 433 00:20:25,190 --> 00:20:27,759 JASON: He's got a dolphin in his mouth! 434 00:20:27,826 --> 00:20:29,761 NARRATOR: To do it, they want to catch 435 00:20:29,828 --> 00:20:33,165 the region's supreme predator, the tiger shark, 436 00:20:33,232 --> 00:20:35,968 and stick a camera on its fin. 437 00:20:36,034 --> 00:20:38,770 KIRK: Pretty shark. Hooked good. 438 00:20:38,837 --> 00:20:41,340 NARRATOR: They have their shark, but... 439 00:20:41,440 --> 00:20:43,175 ASH: It's a bronzie. 440 00:20:43,242 --> 00:20:45,844 DUNCAN: That moment when you're waiting for those stripes 441 00:20:45,911 --> 00:20:47,846 to appear on the back of the shark, 442 00:20:47,913 --> 00:20:50,816 and then you see a flash of bronze instead. 443 00:20:50,882 --> 00:20:52,584 Yeah, it's almost heartbreaking. 444 00:20:52,651 --> 00:20:55,520 You've got a shark; it's just not the right one. 445 00:20:55,587 --> 00:20:59,424 NARRATOR: Bronze whalers are relatives of tiger sharks. 446 00:20:59,491 --> 00:21:02,861 But they're not known for attacking dolphins. 447 00:21:02,928 --> 00:21:04,263 KIRK: We'll get the bolt cutters ready, Frances. 448 00:21:04,329 --> 00:21:05,731 FRANCES: Yep. 449 00:21:05,831 --> 00:21:08,000 NARRATOR: The team decides to hang onto their fin cam 450 00:21:08,066 --> 00:21:10,702 and keep searching for a tiger. 451 00:21:10,769 --> 00:21:13,472 KIRK: Nice. 452 00:21:13,538 --> 00:21:15,674 FRANCES: Okay, it's gone. 453 00:21:15,741 --> 00:21:17,009 We just released it straightaway 454 00:21:17,075 --> 00:21:19,444 and it was a really beautiful release. 455 00:21:19,511 --> 00:21:21,380 DUNCAN: Right back to square one. 456 00:21:23,282 --> 00:21:26,084 NARRATOR: Of nearly 500 species of sharks, 457 00:21:26,151 --> 00:21:30,389 only about 10 target dolphins as prey. 458 00:21:30,489 --> 00:21:33,258 The usual suspects top the list: 459 00:21:33,325 --> 00:21:35,460 the tiger, great white... 460 00:21:35,560 --> 00:21:38,964 JAI: Oh, he's massive! Oh! 461 00:21:39,031 --> 00:21:40,932 NARRATOR: And hammerhead. 462 00:21:40,999 --> 00:21:43,101 They mostly eat stingrays. 463 00:21:43,168 --> 00:21:48,373 But a hammerhead will hunt down a dolphin given the chance. 464 00:21:48,440 --> 00:21:49,675 MAN: Look at that shark, dude. 465 00:21:49,741 --> 00:21:52,311 MAN: I got it, man. I got it all right here. 466 00:21:52,377 --> 00:21:54,479 Holy (bleep). 467 00:21:54,546 --> 00:21:56,448 NARRATOR: The notorious bull shark, 468 00:21:56,515 --> 00:21:59,117 a known man-eater, makes the list. 469 00:21:59,184 --> 00:22:01,687 DUNCAN: Bull sharks are very bold and brash. 470 00:22:01,753 --> 00:22:04,389 Kind of bulldoze other sharks out of the way sometimes, 471 00:22:04,456 --> 00:22:06,458 just to find out where the food is. 472 00:22:06,525 --> 00:22:07,659 FRANCES: Every species of shark 473 00:22:07,726 --> 00:22:10,329 is going to have different hunting modes, 474 00:22:10,429 --> 00:22:14,132 different strategies, different sort of niches that they fill. 475 00:22:14,199 --> 00:22:16,468 NARRATOR: But when it comes to hunting dolphins, 476 00:22:16,535 --> 00:22:20,639 each of these different species share a common trait: 477 00:22:20,739 --> 00:22:22,074 size matters. 478 00:22:22,140 --> 00:22:23,442 JAI: Oi, oi, massive one! 479 00:22:23,508 --> 00:22:25,077 JASON: Look at the size of the thing! 480 00:22:25,143 --> 00:22:27,412 NARRATOR: To get past a dolphin's defenses, 481 00:22:27,479 --> 00:22:32,517 the rule seems to be a shark needs to be as big or bigger. 482 00:22:32,584 --> 00:22:36,655 But there are exceptions to every rule. 483 00:22:36,755 --> 00:22:41,460 Off the Florida coast, a young blacktip shark is in pursuit 484 00:22:41,526 --> 00:22:45,997 of a bottlenose dolphin more than twice his size. 485 00:22:46,064 --> 00:22:47,232 DUNCAN: Yeah, blacktip sharks, 486 00:22:47,299 --> 00:22:48,900 every time I've been in the water with them, 487 00:22:48,967 --> 00:22:51,002 they always behave erratically. 488 00:22:51,069 --> 00:22:52,771 They're like little kids on a sugar rush, 489 00:22:52,838 --> 00:22:54,973 kind of bouncing around. 490 00:22:55,040 --> 00:22:58,243 They don't really care about where you are. 491 00:22:58,310 --> 00:23:00,645 They just want the cheeky free snack. 492 00:23:04,249 --> 00:23:07,519 NARRATOR: The shark's running a risk. 493 00:23:07,586 --> 00:23:10,422 His snack could attack. 494 00:23:13,525 --> 00:23:17,596 The shark comes to his senses and backs off. 495 00:23:17,662 --> 00:23:24,236 ♪ ♪ 496 00:23:24,302 --> 00:23:27,906 The team hopes to film their own dolphin and shark faceoff 497 00:23:27,973 --> 00:23:29,808 with a fin cam. 498 00:23:29,875 --> 00:23:31,610 FRANCES: Alright, one more. 499 00:23:31,676 --> 00:23:33,111 KIRK: So we just finished checking the lines. 500 00:23:33,178 --> 00:23:34,413 We re-baited everything. 501 00:23:34,479 --> 00:23:36,348 We've got some fresh meat on there for the shark. 502 00:23:36,415 --> 00:23:39,718 FRANCES: Ah, I think we actually got a shark on the line. 503 00:23:39,818 --> 00:23:41,052 DUNCAN: As we were going around, 504 00:23:41,119 --> 00:23:44,856 we noticed that both of the buoys were underwater. 505 00:23:44,956 --> 00:23:47,092 KIRK: Watch your feet, watch your feet, watch your feet. 506 00:23:47,159 --> 00:23:50,162 DUNCAN: So, like, for it to pull both those buoys down, 507 00:23:50,228 --> 00:23:51,863 it was gonna be a huge animal. 508 00:23:51,930 --> 00:23:53,665 KIRK: Alright, you can go neutral. Coming up! 509 00:23:53,732 --> 00:23:55,400 DUNCAN: Yep, here he is coming up. 510 00:23:55,467 --> 00:23:56,568 KIRK: Alright, hold on. 511 00:23:56,668 --> 00:24:02,240 ♪ ♪ 512 00:24:02,307 --> 00:24:03,708 FRANCES: It's a tiger. 513 00:24:03,775 --> 00:24:06,912 KIRK: Alright! Got a bruiser of a tiger. 514 00:24:06,978 --> 00:24:08,880 DUNCAN: I jumped in the water. 515 00:24:08,947 --> 00:24:10,849 The water around here is a little bit murky, 516 00:24:10,916 --> 00:24:12,584 so we couldn't really tell how big she was 517 00:24:12,651 --> 00:24:16,288 until we jumped in there. 518 00:24:16,354 --> 00:24:19,291 KIRK: Ah, it's a big one. Big female. 519 00:24:22,494 --> 00:24:24,529 FRANCES: Oh, it's huge. 520 00:24:24,596 --> 00:24:26,731 DUNCAN: I've filmed tiger sharks all around the world. 521 00:24:26,798 --> 00:24:29,601 However, jumping in the water here in Shark Bay 522 00:24:29,668 --> 00:24:32,571 with these just huge, just off-the-chart, 523 00:24:32,637 --> 00:24:36,274 ginormous, mama bus tiger sharks just blew my mind. 524 00:24:36,341 --> 00:24:38,343 And it almost made some of the other sharks 525 00:24:38,443 --> 00:24:40,979 that had been in the water look like tadpoles. 526 00:24:41,046 --> 00:24:44,649 NARRATOR: Such a massive animal demands extreme caution. 527 00:24:44,716 --> 00:24:47,452 FRANCES: Our first priority is the safety of everyone involved, 528 00:24:47,519 --> 00:24:50,489 the safety of the animal, and then getting good science. 529 00:24:50,555 --> 00:24:52,757 NARRATOR: Shark secured. 530 00:24:52,824 --> 00:24:54,759 But there's a problem. 531 00:24:54,826 --> 00:24:56,761 KIRK: Alright, this hook's straightening out, 532 00:24:56,828 --> 00:24:58,797 so just be careful. 533 00:24:58,864 --> 00:25:00,999 NARRATOR: A steel hook is the only thing keeping 534 00:25:01,066 --> 00:25:04,603 this powerful shark safely in place. 535 00:25:04,669 --> 00:25:07,305 And she's bending it. 536 00:25:07,372 --> 00:25:09,274 KIRK: (bleep) It's straightening. 537 00:25:09,341 --> 00:25:11,943 NARRATOR: If she straightens it much more, 538 00:25:12,010 --> 00:25:16,114 this massive beast will break loose. 539 00:25:16,181 --> 00:25:18,216 KIRK: Yeah, you are big, I know. 540 00:25:18,283 --> 00:25:21,119 NARRATOR: Frances and Kirk have a decision to make. 541 00:25:21,186 --> 00:25:24,789 KIRK: We can let her go, or we can try to do a workup, 542 00:25:24,856 --> 00:25:26,591 hope this hook doesn't straighten fully 543 00:25:26,658 --> 00:25:28,894 and we lose her before we get the camera on. 544 00:25:28,994 --> 00:25:30,262 FRANCES: Alright, ready to go on that. 545 00:25:30,328 --> 00:25:33,131 KIRK: Alright, Ash, you can come on over here. 546 00:25:33,198 --> 00:25:34,833 NARRATOR: They decide to go for it. 547 00:25:34,900 --> 00:25:37,836 KIRK: Come on up, Ash, we can probably get a tail on her now. 548 00:25:40,972 --> 00:25:42,207 ASH: Got it. 549 00:25:42,274 --> 00:25:44,009 We got a line on the tail, anyway. 550 00:25:44,075 --> 00:25:45,243 KIRK: Yeah. 551 00:25:45,310 --> 00:25:47,212 Once we lose control of the head though, we're (bleep). 552 00:25:47,279 --> 00:25:49,915 NARRATOR: Keeping control of the shark's head is critical, 553 00:25:49,981 --> 00:25:51,983 especially with her size. 554 00:25:52,050 --> 00:25:55,020 A snap of the jaw could mean tragedy. 555 00:25:57,222 --> 00:25:58,523 KIRK: Hands! 556 00:25:58,590 --> 00:26:01,626 DUNCAN: This huge tiger shark, swinging around with its teeth. 557 00:26:01,693 --> 00:26:03,762 Every time that shark shook its head, 558 00:26:03,828 --> 00:26:05,764 the hook straightened a little bit more. 559 00:26:05,830 --> 00:26:08,033 FRANCES: Okay, Kirk, incoming with the tape. 560 00:26:08,099 --> 00:26:12,337 NARRATOR: The closest hospital is a six-hour boat ride away... 561 00:26:12,404 --> 00:26:13,939 KIRK: Okay, hand me the tape again. 562 00:26:14,005 --> 00:26:16,841 NARRATOR: ...more than enough time for someone to bleed out 563 00:26:16,908 --> 00:26:19,644 if shark teeth meet human flesh. 564 00:26:19,711 --> 00:26:20,979 KIRK: Okay, I'm zero, Frances, zero, zero, zero, zero. 565 00:26:21,046 --> 00:26:22,414 FRANCES: Zero, I'm zeroed. 566 00:26:22,480 --> 00:26:24,082 ASH: Okay, 3.8. 567 00:26:24,149 --> 00:26:25,050 KIRK: 3.8. 568 00:26:25,116 --> 00:26:27,285 NARRATOR: 3.8 meters. 569 00:26:27,352 --> 00:26:31,856 This monster shark is 12 and a half feet long. 570 00:26:31,923 --> 00:26:34,359 KIRK: She's so big. 571 00:26:34,426 --> 00:26:37,696 NARRATOR: And the hook is straightening. 572 00:26:37,762 --> 00:26:39,898 KIRK: Ah, it's probably gonna come out. 573 00:26:39,965 --> 00:26:41,600 NARRATOR: If the shark breaks free, 574 00:26:41,666 --> 00:26:44,469 it could swamp the boat... 575 00:26:44,536 --> 00:26:45,870 KIRK: Yeah, she's pissed. 576 00:26:45,937 --> 00:26:48,573 NARRATOR: ...or charge straight at Duncan. 577 00:26:48,640 --> 00:26:49,574 KIRK: Maybe a little tighter on the tail, Ash. 578 00:26:49,641 --> 00:26:50,675 ASH: It's gonna get lost! 579 00:26:50,742 --> 00:26:51,977 KIRK: Watch out, watch out, watch out! 580 00:26:56,414 --> 00:26:57,749 KIRK: Watch out, watch out, watch out! 581 00:26:57,816 --> 00:26:59,718 FRANCES: I got it, I got it. 582 00:26:59,818 --> 00:27:02,020 NARRATOR: An almost 15-foot tiger shark 583 00:27:02,120 --> 00:27:07,192 in Shark Bay, Australia, might be just perfect. 584 00:27:07,258 --> 00:27:08,760 FRANCES: It's huge. 585 00:27:08,827 --> 00:27:11,429 NARRATOR: The research team hopes to stick a fin camera 586 00:27:11,496 --> 00:27:13,198 on the tiger's dorsal, 587 00:27:13,264 --> 00:27:16,201 providing crucial insight into the epic clash 588 00:27:16,267 --> 00:27:19,104 between sharks and dolphins. 589 00:27:19,170 --> 00:27:21,172 But there's a problem. 590 00:27:21,239 --> 00:27:23,642 KIRK: This hook's straightening out. 591 00:27:23,708 --> 00:27:25,076 Watch your hands. 592 00:27:25,143 --> 00:27:28,546 NARRATOR: The shark is bending the steel hook, 593 00:27:28,613 --> 00:27:32,217 the only thing keeping her massive head still 594 00:27:32,283 --> 00:27:34,019 and her bone-crushing jaws 595 00:27:34,085 --> 00:27:38,189 away from underwater cameraman Duncan Brake. 596 00:27:38,256 --> 00:27:41,092 DUNCAN: This tiger shark was on steroids, it was massive. 597 00:27:41,159 --> 00:27:44,329 NARRATOR: Will the hook hold? 598 00:27:44,396 --> 00:27:46,164 KIRK: If we're quick, we might be able to do this. 599 00:27:46,231 --> 00:27:47,132 FRANCES: Got it. 600 00:27:47,198 --> 00:27:48,566 NARRATOR: It's now or never. 601 00:27:48,667 --> 00:27:49,734 KIRK: Alright, Frances, you ready? 602 00:27:49,801 --> 00:27:51,036 FRANCES: Yep. 603 00:27:53,171 --> 00:27:54,105 DUNCAN: That's pretty good, 604 00:27:54,172 --> 00:27:55,273 that's going flush down the body. 605 00:27:55,340 --> 00:27:56,408 FRANCES: Okay. 606 00:27:56,474 --> 00:27:58,243 NARRATOR: The fin cam is on. 607 00:27:58,309 --> 00:27:59,144 FRANCES: Clear. 608 00:27:59,210 --> 00:28:00,578 KIRK: Okay. Awesome. 609 00:28:00,645 --> 00:28:03,415 NARRATOR: They send her on her way. 610 00:28:03,481 --> 00:28:05,917 KIRK: Dunc, I'm gonna do release, alright? 611 00:28:06,017 --> 00:28:06,918 (snip) 612 00:28:10,055 --> 00:28:11,322 DUNCAN: I really didn't comprehend 613 00:28:11,389 --> 00:28:15,927 how big the animal was until it started swimming towards me. 614 00:28:16,027 --> 00:28:19,597 Then she went right between my legs, and she was huge. 615 00:28:19,698 --> 00:28:21,266 Then it swam off into the distance. 616 00:28:21,332 --> 00:28:23,735 The fin cam looked like it was perfectly placed, 617 00:28:23,802 --> 00:28:25,837 perfectly angled. 618 00:28:25,904 --> 00:28:27,939 It's kinda creepy because within seconds, 619 00:28:28,006 --> 00:28:30,909 in this water clarity, they just disappear. 620 00:28:32,444 --> 00:28:33,511 KIRK: Cool. 621 00:28:33,611 --> 00:28:34,546 FRANCES: Woo! 622 00:28:34,612 --> 00:28:36,181 KIRK: We got it. Camera's out. 623 00:28:36,247 --> 00:28:37,348 Now we're gonna check out, see what these guys 624 00:28:37,415 --> 00:28:39,384 really do with their time. 625 00:28:39,484 --> 00:28:40,819 FRANCES: That is a beautiful animal. 626 00:28:40,885 --> 00:28:43,188 KIRK: Good work, Frances. 627 00:28:43,254 --> 00:28:45,623 FRANCES: That was a truly massive individual 628 00:28:45,690 --> 00:28:47,258 and just a beautiful, beautiful animal. 629 00:28:47,325 --> 00:28:50,195 So I'm very excited to see what happens next. 630 00:28:50,295 --> 00:28:52,397 KIRK: Any information we get back is gonna be novel. 631 00:28:52,464 --> 00:28:53,765 So we're just really, really excited 632 00:28:53,832 --> 00:28:57,535 to see what we get on this camera. 633 00:28:57,602 --> 00:28:59,704 NARRATOR: Recently, another camera captured 634 00:28:59,771 --> 00:29:03,975 a shark/dolphin clash, but this one flips the script. 635 00:29:04,075 --> 00:29:05,877 DUNCAN: People forget that killer whales 636 00:29:05,944 --> 00:29:07,212 are actually dolphins. 637 00:29:07,312 --> 00:29:10,849 They're all part of the same family. 638 00:29:10,915 --> 00:29:13,418 But they're bigger than tiger sharks, 639 00:29:13,485 --> 00:29:15,086 and they're more cunning and more intelligent 640 00:29:15,153 --> 00:29:16,755 than great whites. 641 00:29:18,456 --> 00:29:20,658 If there's something that I am more cautious 642 00:29:20,725 --> 00:29:22,560 of being in the water with than a shark, 643 00:29:22,660 --> 00:29:25,563 it's definitely an orca, a killer whale. 644 00:29:27,999 --> 00:29:32,003 NARRATOR: Off Costa Rica, a pod of orcas, 645 00:29:32,070 --> 00:29:36,307 the world's largest dolphin, target a tiger shark. 646 00:29:40,845 --> 00:29:42,113 DUNCAN: Orcas are so intelligent 647 00:29:42,180 --> 00:29:44,482 that they will collaboratively hunt together 648 00:29:44,549 --> 00:29:48,353 in order to take down their prey. 649 00:29:48,419 --> 00:29:51,222 NARRATOR: The pod surrounds the tiger... 650 00:29:53,391 --> 00:29:56,094 ...trapping it at the surface. 651 00:29:56,161 --> 00:29:59,030 (orca sings) 652 00:29:59,097 --> 00:30:02,367 One orca moves in, 653 00:30:02,433 --> 00:30:05,103 locking the shark in its jaws. 654 00:30:07,172 --> 00:30:10,408 Now the rest of the pod gets a piece. 655 00:30:12,043 --> 00:30:13,611 DUNCAN: And what's more twisted 656 00:30:13,711 --> 00:30:15,914 is that they won't even eat the whole shark. 657 00:30:15,980 --> 00:30:18,616 They'll dissect it and take out a special little bit 658 00:30:18,683 --> 00:30:21,719 that they like the taste of. 659 00:30:21,786 --> 00:30:24,989 When you pitch an orca against a shark 660 00:30:25,056 --> 00:30:29,561 or several orcas against one shark, 661 00:30:29,627 --> 00:30:33,631 it's almost game over every time for the shark. 662 00:30:33,698 --> 00:30:37,569 NARRATOR: This battle goes to the dolphins. 663 00:30:37,635 --> 00:30:39,137 FRANCES: And just because bottlenose dolphins, 664 00:30:39,204 --> 00:30:40,972 the ones that are here, are smaller 665 00:30:41,039 --> 00:30:42,974 does not make them any less shrinking violets. 666 00:30:43,041 --> 00:30:47,378 They're still very vicious predators. 667 00:30:47,445 --> 00:30:50,114 NARRATOR: Back in Shark Bay... 668 00:30:50,181 --> 00:30:51,649 KIRK: Is it getting stronger? 669 00:30:51,716 --> 00:30:53,151 FRANCES: Nope. 670 00:30:53,218 --> 00:30:56,654 NARRATOR: The team hopes for their own amazing footage. 671 00:30:58,423 --> 00:31:01,526 After a day hitchhiking on the tiger shark, 672 00:31:01,593 --> 00:31:06,931 the camera automatically detaches and floats free. 673 00:31:06,998 --> 00:31:09,434 Now the team needs to track it down 674 00:31:09,500 --> 00:31:13,104 in 3.2 million acres of open water. 675 00:31:14,973 --> 00:31:16,207 FRANCES: I think we might've passed it, 676 00:31:16,274 --> 00:31:17,375 'cause we're starting to get weaker 677 00:31:17,475 --> 00:31:20,612 and the signal's coming from that way. 678 00:31:20,678 --> 00:31:22,280 NARRATOR: They're fighting the elements 679 00:31:22,347 --> 00:31:25,550 and the setting sun to find it. 680 00:31:25,617 --> 00:31:27,285 KIRK: As long as we're going the right direction, 681 00:31:27,352 --> 00:31:28,486 I'll keep looking. 682 00:31:28,553 --> 00:31:29,721 FRANCES: Okay. 683 00:31:29,787 --> 00:31:31,556 I don't know if you can see behind us, 684 00:31:31,623 --> 00:31:35,460 we're getting out of Shark Bay and sort of into the ocean. 685 00:31:35,526 --> 00:31:37,061 It's a race against the clock. 686 00:31:37,128 --> 00:31:38,997 KIRK: Keep this heading for a little bit. 687 00:31:39,063 --> 00:31:40,531 (beeping) 688 00:31:43,868 --> 00:31:45,136 FRANCES: If we don't find it before sunset, 689 00:31:45,203 --> 00:31:48,940 it's gonna be nigh on impossible to collect at night 690 00:31:49,007 --> 00:31:52,043 just because then we're looking for a black thing 691 00:31:52,110 --> 00:31:53,711 in a black ocean. 692 00:31:53,811 --> 00:31:55,046 KIRK: I think we're getting really close. 693 00:31:55,113 --> 00:31:56,214 It's getting pretty loud. 694 00:31:56,281 --> 00:31:57,115 FRANCES: Yeah? 695 00:31:57,181 --> 00:31:58,549 (beeping) 696 00:32:02,921 --> 00:32:05,990 NARRATOR: The camera floated free a few hours ago. 697 00:32:06,057 --> 00:32:09,727 The hope is that it captured something never seen before: 698 00:32:09,794 --> 00:32:12,597 a shark's-eye view of that shark 699 00:32:12,664 --> 00:32:15,633 going fin-to-fin with a dolphin. 700 00:32:15,700 --> 00:32:17,235 FRANCES: What we hope to find when we get that camera back 701 00:32:17,302 --> 00:32:19,804 is we're really looking for how these organisms may interact 702 00:32:19,871 --> 00:32:22,640 with their prey species, including dolphins. 703 00:32:22,707 --> 00:32:26,044 NARRATOR: Documenting a dolphin encounter as a shark sees it 704 00:32:26,110 --> 00:32:27,712 would be groundbreaking. 705 00:32:27,779 --> 00:32:29,881 It could answer long-burning questions 706 00:32:29,948 --> 00:32:33,217 about these two top predators. 707 00:32:33,284 --> 00:32:38,089 It could also capture a whole lot of nothing. 708 00:32:38,156 --> 00:32:41,159 FRANCES: The signal's definitely coming from this direction. 709 00:32:41,225 --> 00:32:42,126 KIRK: Let me have a quick listen. 710 00:32:42,193 --> 00:32:45,029 (beeping) 711 00:32:45,096 --> 00:32:47,031 Got it right there! Right there. 712 00:32:47,098 --> 00:32:48,066 FRANCES: For real? KIRK: Yup. 713 00:32:48,132 --> 00:32:52,003 FRANCES: Oh, I see it! Yup! Ha ha! 714 00:32:52,070 --> 00:32:54,639 Yes, Kirk. Well done. 715 00:32:54,706 --> 00:32:58,176 That moment where we plucked the fin cam... 716 00:32:58,242 --> 00:33:00,378 KIRK: Got it! Woo hoo! 717 00:33:00,445 --> 00:33:01,612 FRANCES: ...from the sort of setting sun 718 00:33:01,679 --> 00:33:04,248 and the seething ocean was incredible. 719 00:33:04,315 --> 00:33:06,517 KIRK: Ha ha ha! There we go, guys. 720 00:33:06,617 --> 00:33:07,919 Love it. 721 00:33:07,986 --> 00:33:12,023 FRANCES: Now you have to make sure that it all worked. 722 00:33:12,090 --> 00:33:13,291 Well, we have footage. 723 00:33:13,391 --> 00:33:14,993 KIRK: That's a good start. 724 00:33:15,059 --> 00:33:16,761 FRANCES: Let's find the release. 725 00:33:16,828 --> 00:33:18,496 And boom. 726 00:33:18,563 --> 00:33:21,632 KIRK: There she goes. 727 00:33:21,699 --> 00:33:23,835 Kicking strong. 728 00:33:23,901 --> 00:33:26,104 NARRATOR: Shark Bay, from the point of view 729 00:33:26,170 --> 00:33:29,073 of a giant apex predator. 730 00:33:29,140 --> 00:33:31,909 FRANCES: We did find it way out in that offshore there, 731 00:33:32,010 --> 00:33:34,112 so maybe she gets deeper. 732 00:33:34,178 --> 00:33:36,814 Although we might lose the light later on in the day. 733 00:33:36,881 --> 00:33:38,516 NARRATOR: They've got hours of footage 734 00:33:38,583 --> 00:33:41,119 of this tiger on the move. 735 00:33:41,185 --> 00:33:43,187 It's valuable data; 736 00:33:43,254 --> 00:33:47,158 just not the eye-popping action they hoped for. 737 00:33:47,225 --> 00:33:48,760 FRANCES: This happens in fieldwork all the time. 738 00:33:48,826 --> 00:33:50,828 But when you only have a limited window 739 00:33:50,895 --> 00:33:54,866 and a couple shots or maybe one shot at it, 740 00:33:54,932 --> 00:33:57,935 when that happens, it's rough. 741 00:33:58,002 --> 00:34:00,471 Yeah, it doesn't, it doesn't feel great. 742 00:34:00,538 --> 00:34:02,507 NARRATOR: Sometimes it's a matter of being 743 00:34:02,573 --> 00:34:05,309 at the right place at the right time. 744 00:34:07,545 --> 00:34:10,882 Captain Ash had recent luck of his own. 745 00:34:10,948 --> 00:34:12,683 ASH: So we're just filming out here one day 746 00:34:12,750 --> 00:34:14,118 and we saw this object. 747 00:34:14,185 --> 00:34:16,621 See, that's a tiger at the back of the boat. 748 00:34:16,687 --> 00:34:19,090 So we just followed it, four dolphins just appeared 749 00:34:19,157 --> 00:34:21,692 out of nowhere with a juvenile dolphin, you'll see them here. 750 00:34:21,759 --> 00:34:24,062 See? See, that's the tiger. 751 00:34:24,128 --> 00:34:26,297 Little juvenile right in front of the shark. 752 00:34:26,364 --> 00:34:28,533 We thought, "Gee, this tiger is just going to eat 753 00:34:28,599 --> 00:34:31,369 this juvenile dolphin." 754 00:34:31,469 --> 00:34:35,139 And watch what happens when the adults get involved. 755 00:34:35,206 --> 00:34:37,942 They end up flicking this bit of seaweed 756 00:34:38,009 --> 00:34:39,911 in front of the tiger shark 757 00:34:39,977 --> 00:34:42,613 and distracting it from the little dolphin. 758 00:34:42,680 --> 00:34:44,449 As if they're, like, teaching the little dolphin, 759 00:34:44,515 --> 00:34:46,417 "Don't be scared of this tiger shark. 760 00:34:46,484 --> 00:34:49,020 And just in case you get into trouble, there's that seaweed." 761 00:34:49,087 --> 00:34:51,122 NARRATOR: The pod of dolphins work together 762 00:34:51,189 --> 00:34:54,025 to keep the little calf safe from the tiger. 763 00:34:54,092 --> 00:34:55,960 FRANCES: I mean, given the water clarity 764 00:34:56,027 --> 00:34:59,130 and just also the sort of maneuverable space, 765 00:34:59,197 --> 00:35:02,467 they probably felt this was a pretty low risk situation. 766 00:35:02,533 --> 00:35:05,136 NARRATOR: Ash's footage points out a potential flaw 767 00:35:05,203 --> 00:35:07,939 in the team's fin cam deployment. 768 00:35:08,005 --> 00:35:11,209 The camera doesn't see any dolphins, 769 00:35:11,275 --> 00:35:17,248 because in daylight, dolphins see the shark first. 770 00:35:17,315 --> 00:35:21,352 Nighttime might be when all the action happens. 771 00:35:23,321 --> 00:35:29,127 The team has a solution: a special night vision camera. 772 00:35:29,193 --> 00:35:31,629 FRANCES: We know that tiger sharks are active at night. 773 00:35:31,696 --> 00:35:33,097 The real question is, 774 00:35:33,164 --> 00:35:36,234 how are they interacting with their prey at night? 775 00:35:36,300 --> 00:35:39,103 NARRATOR: This camera can answer that question. 776 00:35:39,170 --> 00:35:44,142 It uses infrared technology to peer into darkness. 777 00:35:44,208 --> 00:35:45,676 KIRK: To my knowledge, there has never been 778 00:35:45,743 --> 00:35:49,180 a nighttime deployment of a fin camera in Shark Bay. 779 00:35:49,247 --> 00:35:52,150 NARRATOR: Night is when these two top predators 780 00:35:52,216 --> 00:35:54,886 bring all their weapons to bear. 781 00:35:54,952 --> 00:35:58,689 Their super-senses, echolocation in dolphins, 782 00:35:58,756 --> 00:36:01,759 electroreceptivity in sharks, 783 00:36:01,826 --> 00:36:05,696 allow both to keep battling after the sun goes down. 784 00:36:05,763 --> 00:36:11,002 ♪ ♪ 785 00:36:11,068 --> 00:36:13,971 They head north where Captain Ash feels they have 786 00:36:14,038 --> 00:36:17,508 the best shot at catching a big tiger at night. 787 00:36:20,044 --> 00:36:21,245 FRANCES: So, we're just loading up the boat now 788 00:36:21,312 --> 00:36:25,583 to go set some lines to catch our sharks at night 789 00:36:25,650 --> 00:36:26,951 so we can put on our night camera. 790 00:36:27,018 --> 00:36:29,020 So, we gotta go. 791 00:36:29,086 --> 00:36:30,288 DUNCAN: A lot more swell this evening. 792 00:36:30,354 --> 00:36:32,790 There's a big storm front coming in. 793 00:36:32,857 --> 00:36:37,094 So, we've got a limited amount of time to get this tag on. 794 00:36:39,063 --> 00:36:40,398 ASH: Go get a tiger, mate. 795 00:36:40,464 --> 00:36:46,337 ♪ ♪ 796 00:36:46,437 --> 00:36:47,772 NARRATOR: If there's no shark, 797 00:36:47,838 --> 00:36:52,276 they'll have to pull the lines before the storm rolls in. 798 00:36:52,343 --> 00:36:54,212 FRANCES: So, right now, we're just looking for the buoys. 799 00:36:54,278 --> 00:36:55,646 It's a little after 4:00 AM. 800 00:36:55,713 --> 00:36:57,114 The wind has picked up. 801 00:36:57,215 --> 00:37:01,619 So, fingers crossed, we get a big tiger really quickly. 802 00:37:01,686 --> 00:37:05,122 NARRATOR: They're in luck. 803 00:37:05,189 --> 00:37:06,123 FRANCES: You see it? 804 00:37:06,190 --> 00:37:07,758 ASH: There it is, dead ahead. 805 00:37:07,825 --> 00:37:09,560 FRANCES: We have a big old tiger shark on the line. 806 00:37:09,627 --> 00:37:11,462 We're gonna work her up as fast as we can 807 00:37:11,529 --> 00:37:13,698 and go from there. 808 00:37:13,764 --> 00:37:14,665 ASH: Alright. Ready? 809 00:37:14,732 --> 00:37:17,368 KIRK: Yeah. I'm on it. 810 00:37:17,468 --> 00:37:18,669 FRANCES: It's big. 811 00:37:18,736 --> 00:37:19,804 KIRK: It's a big female. 812 00:37:19,870 --> 00:37:21,005 ASH: You want a hand or are you alright? 813 00:37:21,072 --> 00:37:22,873 KIRK: Yup, coming down. 814 00:37:27,845 --> 00:37:30,982 NARRATOR: Working a tiger shark is hard during daytime, 815 00:37:31,048 --> 00:37:34,986 but downright dangerous at night. 816 00:37:35,052 --> 00:37:38,889 Teeth and whipping tail... 817 00:37:38,956 --> 00:37:40,891 all in darkness. 818 00:37:40,992 --> 00:37:42,059 FRANCES: Stakes are high. 819 00:37:42,159 --> 00:37:43,961 You know, we got one shot left at this. 820 00:37:44,061 --> 00:37:46,397 So we gotta try to make it work. 821 00:37:46,464 --> 00:37:48,566 KIRK: Watch out, coming up, coming up. 822 00:37:48,633 --> 00:37:51,068 NARRATOR: Once again Duncan dives in, 823 00:37:51,168 --> 00:37:55,306 this time in ink-black waters. 824 00:37:55,373 --> 00:37:56,841 DUNCAN: Whenever you enter the water at night, 825 00:37:56,907 --> 00:38:00,077 you've always gotta be concerned of not what you can see, 826 00:38:00,177 --> 00:38:01,445 but what you can't see, 827 00:38:01,512 --> 00:38:05,249 and when the lights go out, no one knows what could happen. 828 00:38:05,316 --> 00:38:07,251 KIRK: Hold on. 829 00:38:07,318 --> 00:38:08,286 FRANCES: Oh, (bleep). 830 00:38:08,352 --> 00:38:10,454 KIRK: Watch it, Frances, watch it! 831 00:38:13,658 --> 00:38:16,327 NARRATOR: Shark researchers Frances Farabaugh 832 00:38:16,394 --> 00:38:19,563 and Kirk Gastrich are wrestling a tiger shark. 833 00:38:19,630 --> 00:38:21,365 KIRK: Coming down, breathing. 834 00:38:21,432 --> 00:38:23,834 Okay, you good? 835 00:38:23,901 --> 00:38:25,469 ASH: Yeah, I've got it. 836 00:38:25,536 --> 00:38:29,040 NARRATOR: They hope to attach a special nighttime fin cam, 837 00:38:29,106 --> 00:38:31,909 but an incoming storm and a thrashing shark 838 00:38:31,976 --> 00:38:33,844 might make that impossible. 839 00:38:33,911 --> 00:38:35,913 KIRK: Although there have been daytime camera deployments 840 00:38:35,980 --> 00:38:37,381 in Shark Bay, 841 00:38:37,448 --> 00:38:39,684 there haven't been any nighttime camera deployments. 842 00:38:39,750 --> 00:38:43,287 Whatever we get back from this camera is gonna be novel stuff. 843 00:38:43,354 --> 00:38:45,289 So now that we've got the shark alongside the boat, 844 00:38:45,356 --> 00:38:46,924 we're going to finish our workup, 845 00:38:46,991 --> 00:38:48,859 attach this nighttime camera, 846 00:38:48,926 --> 00:38:51,929 and let her go, see what she sees. 847 00:38:51,996 --> 00:38:54,298 FRANCES: Try to just get it down a little bit more. 848 00:38:54,365 --> 00:38:57,201 KIRK: Watch out, guys. 849 00:38:57,268 --> 00:39:00,137 NARRATOR: The whipping shark and the crashing swells 850 00:39:00,237 --> 00:39:02,273 are not making it easy. 851 00:39:02,340 --> 00:39:04,375 FRANCES: Come on. 852 00:39:04,442 --> 00:39:05,676 KIRK: How we going with that, Frances? 853 00:39:05,743 --> 00:39:08,012 FRANCES: Almost done. 854 00:39:08,079 --> 00:39:10,948 NARRATOR: Their underwater cinematographer Duncan Brake 855 00:39:11,015 --> 00:39:13,784 is capturing the action up close. 856 00:39:13,851 --> 00:39:16,354 Sometimes too close. 857 00:39:16,420 --> 00:39:17,722 KIRK: Dunc! 858 00:39:17,788 --> 00:39:18,756 Watch it. 859 00:39:18,823 --> 00:39:19,724 You got it? 860 00:39:21,559 --> 00:39:24,161 DUNCAN: Every couple of moments, there'd be a massive surge 861 00:39:24,228 --> 00:39:26,230 which would be pushing us right in towards 862 00:39:26,297 --> 00:39:29,033 the jaws of that massive tiger shark. 863 00:39:30,901 --> 00:39:33,371 KIRK: Far as you got it? Okay. Cool. 864 00:39:33,437 --> 00:39:36,073 Frances got the tag on her, and she's getting restless, 865 00:39:36,140 --> 00:39:38,309 so we'd better get her back in the ocean. 866 00:39:38,376 --> 00:39:40,811 NARRATOR: The shark is ready to release. 867 00:39:40,878 --> 00:39:43,647 They have to time it just right. 868 00:39:43,714 --> 00:39:44,582 KIRK: Okay, ready? FRANCES: Ready. 869 00:39:46,951 --> 00:39:47,785 KIRK: Ready? 870 00:39:47,852 --> 00:39:49,120 ASH: Hang on, hang on. 871 00:39:49,186 --> 00:39:50,187 Yeah, I'm ready. 872 00:39:50,287 --> 00:39:51,122 FRANCES: He's ready. KIRK: Good? 873 00:39:51,188 --> 00:39:53,391 ASH: Yeah. KIRK: Go. 874 00:39:53,457 --> 00:39:54,392 ASH: You're off? KIRK: Off! 875 00:39:54,458 --> 00:39:55,393 ASH: Right-io. 876 00:39:55,459 --> 00:39:56,594 NARRATOR: A first: 877 00:39:56,660 --> 00:39:59,530 a nighttime fin cam deployment in Shark Bay. 878 00:39:59,597 --> 00:40:01,332 KIRK: Woo! ASH: Awesome. 879 00:40:01,399 --> 00:40:04,201 FRANCES: Yeah, that's a pretty incredible experience. 880 00:40:04,268 --> 00:40:06,570 So now it's just a race against time 881 00:40:06,637 --> 00:40:09,507 to make sure that we get the tag as soon as it pops up, 882 00:40:09,573 --> 00:40:12,209 and that we gather that data and get it back. 883 00:40:14,945 --> 00:40:16,847 NARRATOR: But there's a problem. 884 00:40:16,914 --> 00:40:18,516 ASH: Dead ahead, Frances. 885 00:40:18,582 --> 00:40:19,417 KIRK: You got it? 886 00:40:19,483 --> 00:40:20,751 FRANCES: Yep, got it. 887 00:40:20,818 --> 00:40:23,220 So we were just headed on our way back into the boat 888 00:40:23,320 --> 00:40:26,724 and the tag popped off. 889 00:40:26,791 --> 00:40:28,092 NARRATOR: Instead of hours, 890 00:40:28,159 --> 00:40:32,630 the camera releases after only a few minutes. 891 00:40:32,696 --> 00:40:34,465 FRANCES: All of the, what you had hoped 892 00:40:34,532 --> 00:40:36,066 and you did all this work for, 893 00:40:36,133 --> 00:40:39,437 it's just defeat snatched from the jaws of victory. 894 00:40:39,503 --> 00:40:42,673 You're so high and then you just drop so low. 895 00:40:46,343 --> 00:40:50,948 So here you can see the animal and the boat. 896 00:40:54,718 --> 00:40:58,022 And then floats back up towards the surface here. 897 00:41:00,391 --> 00:41:02,326 Bummer. 898 00:41:02,393 --> 00:41:05,362 NARRATOR: But there is a silver lining. 899 00:41:05,429 --> 00:41:07,998 FRANCES: What this does is the night vision camera works. 900 00:41:08,065 --> 00:41:09,867 We can see the animal's head. 901 00:41:09,967 --> 00:41:13,871 And it's encouraging to see these, these images come back. 902 00:41:13,938 --> 00:41:18,342 So it's something, an area for further exploration, for sure. 903 00:41:19,844 --> 00:41:21,645 KIRK: Off! 904 00:41:21,712 --> 00:41:23,280 It came back with our first glimpse 905 00:41:23,347 --> 00:41:26,650 of some underwater nighttime footage from these tiger sharks. 906 00:41:26,717 --> 00:41:30,421 You get confirmation that this technology could work. 907 00:41:30,488 --> 00:41:32,756 NARRATOR: The battle beneath the waves of Shark Bay 908 00:41:32,823 --> 00:41:35,226 remains hidden for now. 909 00:41:37,962 --> 00:41:42,700 But Shark Bay does reveal something to the research team. 910 00:41:42,766 --> 00:41:47,171 This war might not have winners and losers. 911 00:41:47,238 --> 00:41:49,039 FRANCES: I think it's a mistake to think of this conflict 912 00:41:49,139 --> 00:41:53,043 between dolphins and sharks as a zero-sum game. 913 00:41:53,110 --> 00:41:54,378 When it's in balance, 914 00:41:54,445 --> 00:41:56,947 you end up with a healthy, functioning ecosystem, 915 00:41:57,014 --> 00:42:00,384 which is what we're looking to better understand and protect 916 00:42:00,451 --> 00:42:03,687 and preserve as we move forward with a changing planet. 917 00:42:03,754 --> 00:42:06,891 NARRATOR: This balance between the ocean's supreme predators 918 00:42:06,957 --> 00:42:10,461 is revealed off the Florida coast. 919 00:42:10,528 --> 00:42:13,330 A diver is in the middle of a bait ball. 920 00:42:13,397 --> 00:42:16,901 This swirling mass forms as a defensive maneuver, 921 00:42:16,967 --> 00:42:19,203 a way to confuse predators. 922 00:42:19,270 --> 00:42:23,073 Predators like sharks and dolphins. 923 00:42:23,140 --> 00:42:26,410 But here, they put their differences aside. 924 00:42:26,477 --> 00:42:28,979 DUNCAN: So, when there's a big bait school in the water, 925 00:42:29,079 --> 00:42:30,281 all these sharks and dolphins 926 00:42:30,347 --> 00:42:32,416 are collectively working together, 927 00:42:32,483 --> 00:42:35,619 collaboratively preying on all these little fish. 928 00:42:35,686 --> 00:42:38,055 When the ocean provides, it's almost like the sharks 929 00:42:38,122 --> 00:42:40,824 and the dolphins have called a ceasefire 930 00:42:40,891 --> 00:42:45,429 so that they can meet in the middle and take down their prey. 931 00:42:45,496 --> 00:42:46,697 NARRATOR: It's another glimpse 932 00:42:46,764 --> 00:42:49,266 into the world of sharks and dolphins. 933 00:42:49,333 --> 00:42:50,267 (man yells) 934 00:42:50,334 --> 00:42:52,436 One more chance to gain insight 935 00:42:52,503 --> 00:42:55,139 into their complicated relationship, 936 00:42:55,205 --> 00:42:58,742 one that is changing how we view each animal. 937 00:42:58,809 --> 00:43:01,845 FRANCES: It's a mistake to think of dolphins versus sharks 938 00:43:01,912 --> 00:43:04,381 as some kind of mismatched pairing. 939 00:43:04,481 --> 00:43:05,950 It's not one that's like a heavyweight champion 940 00:43:06,016 --> 00:43:08,352 and one that's a lightweight, by any means. 941 00:43:08,452 --> 00:43:09,587 DUNCAN: With sharks versus dolphins, 942 00:43:09,653 --> 00:43:12,256 there's not ever a clear-cut winner or loser. 943 00:43:12,323 --> 00:43:13,891 It's just nature. 944 00:43:14,158 --> 00:43:16,160 Captioned by Side Door Media Services