All language subtitles for Orca.vs.Great.White.2021.WEB-DL.DSNP

af Afrikaans
sq Albanian
am Amharic
ar Arabic
hy Armenian
az Azerbaijani
eu Basque
be Belarusian
bn Bengali
bs Bosnian
bg Bulgarian
ca Catalan
ceb Cebuano
ny Chichewa
zh-CN Chinese (Simplified)
zh-TW Chinese (Traditional)
co Corsican
hr Croatian
cs Czech
da Danish
nl Dutch Download
en English
eo Esperanto
et Estonian
tl Filipino
fi Finnish
fr French
fy Frisian
gl Galician
ka Georgian
de German
el Greek
gu Gujarati
ht Haitian Creole
ha Hausa
haw Hawaiian
iw Hebrew
hi Hindi
hmn Hmong
hu Hungarian
is Icelandic
ig Igbo
id Indonesian
ga Irish
it Italian
ja Japanese
jw Javanese
kn Kannada
kk Kazakh
km Khmer
ko Korean
ku Kurdish (Kurmanji)
ky Kyrgyz
lo Lao
la Latin Download
lv Latvian
lt Lithuanian
lb Luxembourgish
mk Macedonian
mg Malagasy
ms Malay
ml Malayalam
mt Maltese
mi Maori
mr Marathi
mn Mongolian
my Myanmar (Burmese)
ne Nepali
no Norwegian
ps Pashto
fa Persian
pl Polish
pt Portuguese Download
pa Punjabi
ro Romanian Download
ru Russian
sm Samoan
gd Scots Gaelic
sr Serbian
st Sesotho
sn Shona
sd Sindhi
si Sinhala
sk Slovak
sl Slovenian
so Somali
es Spanish Download
su Sundanese
sw Swahili
sv Swedish
tg Tajik
ta Tamil
te Telugu
th Thai
tr Turkish
uk Ukrainian
ur Urdu
uz Uzbek
vi Vietnamese
cy Welsh
xh Xhosa
yi Yiddish
yo Yoruba
zu Zulu
or Odia (Oriya)
rw Kinyarwanda
tk Turkmen
tt Tatar
ug Uyghur
Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:04,045 --> 00:00:08,717 NARRATOR: Two apex predators dominate the ocean, 2 00:00:08,800 --> 00:00:13,638 the great white shark, a lone hunter. 3 00:00:14,556 --> 00:00:18,393 And the orca, known as the killer whale. 4 00:00:24,774 --> 00:00:29,487 Both sit atop the oceanic food chain so when orca begin to 5 00:00:29,571 --> 00:00:32,907 hunt great white sharks in South Africa, 6 00:00:32,991 --> 00:00:36,202 it's big news. 7 00:00:37,078 --> 00:00:40,373 Experts want to know will it happen again, 8 00:00:40,457 --> 00:00:43,418 and if so where? 9 00:00:45,587 --> 00:00:48,715 (theme music plays) 10 00:00:56,097 --> 00:00:58,099 It's happened before, 11 00:00:58,183 --> 00:01:02,854 orca have hunted and killed great white sharks. 12 00:01:02,937 --> 00:01:05,065 One of the first reported cases off the coast of 13 00:01:05,148 --> 00:01:08,234 California in 1997. 14 00:01:08,318 --> 00:01:12,238 And again in 2017 off South Africa. 15 00:01:12,322 --> 00:01:15,450 Five dead white sharks washed ashore. 16 00:01:15,533 --> 00:01:19,913 Shark scientists wondered why orca would hunt dangerous prey 17 00:01:19,996 --> 00:01:21,664 like a white shark. 18 00:01:21,748 --> 00:01:24,459 With attacks happening in oceans around the world, 19 00:01:24,542 --> 00:01:28,088 experts are looking for similarities and patterns, 20 00:01:28,171 --> 00:01:32,050 and what the effect would be on the marine ecosystem. 21 00:01:33,802 --> 00:01:36,763 Particularly in New Zealand. 22 00:01:36,846 --> 00:01:41,226 KINA: When the orca started to kill the great white sharks in South Africa, 23 00:01:41,309 --> 00:01:43,436 the rest of the sharks actually disappeared 24 00:01:43,520 --> 00:01:45,939 and haven't come back for years. 25 00:01:46,022 --> 00:01:48,399 If that happened in New Zealand, 26 00:01:48,483 --> 00:01:51,528 not only would we lose this population of great whites 27 00:01:51,611 --> 00:01:54,781 that we've learned so much about but it would also be 28 00:01:54,864 --> 00:01:57,492 disastrous for this ecosystem to lose 29 00:01:57,575 --> 00:01:59,911 an apex predator like that. 30 00:02:01,329 --> 00:02:04,124 NARRATOR: There are several theories about exactly why 31 00:02:04,207 --> 00:02:05,917 the sharks vanished. 32 00:02:06,000 --> 00:02:08,586 But the coincidence of the orca attacks 33 00:02:08,670 --> 00:02:12,590 and the disappearance of the sharks is hard to ignore. 34 00:02:12,674 --> 00:02:15,218 And there's a lot at stake, 35 00:02:15,301 --> 00:02:19,013 including the health of the marine ecosystem. 36 00:02:21,015 --> 00:02:24,394 New Zealand has a local orca population 37 00:02:24,477 --> 00:02:27,230 of between 150 and 200. 38 00:02:28,314 --> 00:02:30,525 While the white shark aggregation is one of the 39 00:02:30,608 --> 00:02:32,819 largest in the world. 40 00:02:33,570 --> 00:02:37,365 Estimated to be over 5,000. 41 00:02:38,741 --> 00:02:42,453 If the orca begin to go after white sharks here, 42 00:02:42,537 --> 00:02:45,498 they have plenty to choose from. 43 00:02:49,210 --> 00:02:52,672 New Zealanders Kina Scollay and Dr. Ingrid Visser 44 00:02:52,755 --> 00:02:54,883 are investigating. 45 00:02:54,966 --> 00:02:58,678 Orca could be hunting great white sharks already. 46 00:02:58,761 --> 00:03:00,722 But no white sharks have washed up 47 00:03:00,805 --> 00:03:03,183 on New Zealand beaches. 48 00:03:05,310 --> 00:03:09,731 So, they're searching for other signs of orca predation. 49 00:03:11,441 --> 00:03:15,820 Any strange behavior, wounds from an encounter, 50 00:03:15,904 --> 00:03:20,742 anything that points to orca hunting white sharks. 51 00:03:21,201 --> 00:03:22,744 INGRID: I'm coming down the port side. 52 00:03:23,953 --> 00:03:25,330 KINA: Roger. 53 00:03:27,582 --> 00:03:30,335 It really is interesting, Ingrid. What do you think? 54 00:03:33,254 --> 00:03:35,757 NARRATOR: Local great whites are in New Zealand waters from 55 00:03:35,840 --> 00:03:39,052 December to June, when many will leave on their 56 00:03:39,135 --> 00:03:42,972 annual 2,000 mile migration, to the coast of Australia, 57 00:03:43,056 --> 00:03:45,642 and the Tropical Pacific. 58 00:03:46,809 --> 00:03:51,689 Local orca, on the other hand, remain in New Zealand waters all year round, 59 00:03:51,773 --> 00:03:54,984 roaming the coastline in search of prey. 60 00:03:57,153 --> 00:04:00,531 Ingrid is New Zealand's top orca specialist. 61 00:04:00,615 --> 00:04:04,827 But today is her first dive with great white sharks. 62 00:04:05,245 --> 00:04:08,039 KINA: I'm pretty psyched to get you in a cage with, uh, 63 00:04:08,581 --> 00:04:12,335 my favorite population of great white sharks in the world. 64 00:04:13,670 --> 00:04:16,923 INGRID: I have to admit, I'm pretty pumped about it myself, that's for sure! 65 00:04:19,300 --> 00:04:20,301 Wow! 66 00:04:22,011 --> 00:04:23,596 KINA: What do you think? 67 00:04:23,680 --> 00:04:26,975 INGRID: It's pretty amazing, Kina, to see New Zealand sharks this close. 68 00:04:32,397 --> 00:04:35,566 I really expected to be quite scared, but 69 00:04:35,650 --> 00:04:39,153 in the safety of the cage here, it's quite impressive to just watch them 70 00:04:39,779 --> 00:04:41,906 doing their great white shark thing, right? 71 00:04:50,790 --> 00:04:51,666 Wow! 72 00:04:52,333 --> 00:04:53,835 He snuck up on us! 73 00:04:56,671 --> 00:04:58,756 KINA: That's their specialty! 74 00:05:01,175 --> 00:05:04,929 NARRATOR: Great white sharks in this area are curious and aggressive, 75 00:05:05,013 --> 00:05:07,682 which makes them dangerous. 76 00:05:09,517 --> 00:05:12,270 Orca and white sharks have shared the top of the ocean 77 00:05:12,353 --> 00:05:15,273 food chain for millions of years. 78 00:05:15,356 --> 00:05:19,277 So why would orca attack great whites like these now? 79 00:05:20,028 --> 00:05:22,238 INGRID: Even though orca are the largest of the 80 00:05:22,322 --> 00:05:24,782 dolphin family and they can be friendly, 81 00:05:24,866 --> 00:05:26,784 we still have to consider that they are one of the top 82 00:05:26,868 --> 00:05:28,870 predators of the ocean. 83 00:05:31,080 --> 00:05:33,958 NARRATOR: Ingrid's research tracks the 200 or so orca 84 00:05:34,042 --> 00:05:36,794 living in New Zealand's waters. 85 00:05:36,878 --> 00:05:39,047 INGRID: Yeah, I know, big guy! Hang in there. 86 00:05:39,130 --> 00:05:41,883 The exciting thing about this adventure for me is that we've 87 00:05:41,966 --> 00:05:45,011 got two top predators, and we don't really know 88 00:05:45,094 --> 00:05:46,512 what's happening between them. 89 00:05:53,019 --> 00:05:55,313 NARRATOR: Orca and white sharks are the top 90 00:05:55,396 --> 00:05:57,482 two ocean predators. 91 00:05:57,565 --> 00:06:00,610 Yet they're fundamentally different. 92 00:06:02,403 --> 00:06:05,573 Orca are air-breathing mammals. 93 00:06:07,200 --> 00:06:10,620 White sharks are water-breathing fish. 94 00:06:11,204 --> 00:06:13,498 Orcas live in pods of up to 40, 95 00:06:13,581 --> 00:06:17,460 made up of individual family units that remain together 96 00:06:17,543 --> 00:06:20,671 for life and hunt cooperatively. 97 00:06:21,923 --> 00:06:25,510 Some new research suggests white sharks may occasionally 98 00:06:25,593 --> 00:06:27,595 hunt in groups. 99 00:06:28,638 --> 00:06:31,099 But they tend to hunt alone. 100 00:06:33,851 --> 00:06:38,898 The largest great white ever recorded measured over 20 feet 101 00:06:38,981 --> 00:06:42,360 and weighed 5,000 pounds. 102 00:06:42,443 --> 00:06:44,862 Small for an orca. 103 00:06:44,946 --> 00:06:47,573 Killer whales can grow to 30 feet or more. 104 00:06:47,657 --> 00:06:51,911 And weigh as much as 20,000 pounds. 105 00:06:55,164 --> 00:06:56,707 But as different as they are, 106 00:06:56,791 --> 00:06:59,877 orca and great whites are both sophisticated, 107 00:06:59,961 --> 00:07:04,382 tough, and hungry predators. 108 00:07:07,009 --> 00:07:09,178 KINA: Whoa, this is a big animal. 109 00:07:10,304 --> 00:07:13,891 NARRATOR: Kina and Ingrid dive again and again. 110 00:07:13,975 --> 00:07:16,310 Searching for evidence. 111 00:07:24,652 --> 00:07:27,238 KINA: Well, that was a pretty amazing interaction, Ingrid! 112 00:07:27,321 --> 00:07:30,992 Those two sharks actually physically bumped into each other! 113 00:07:31,993 --> 00:07:34,745 Nobody wanted to back down, and they were leaning 114 00:07:34,829 --> 00:07:39,000 pectoral fin onto pectoral fin. That's quite a sight! 115 00:07:39,959 --> 00:07:44,255 INGRID: I think this was more of a, you know, "get out of my territory" interaction. 116 00:07:44,338 --> 00:07:48,134 I don't doubt that if the orca were going to take on one of these great white sharks, 117 00:07:48,217 --> 00:07:51,429 they would be thinking very carefully about it before they did. 118 00:07:53,181 --> 00:07:55,308 There wouldn't be a mistake, and it wouldn't be something 119 00:07:55,391 --> 00:07:57,393 that they would take on lightly. 120 00:08:03,357 --> 00:08:06,819 Yeah, there seems to be a very strong hierarchy going on here. 121 00:08:08,529 --> 00:08:12,867 When you see that with orca, it's usually a nice social interaction. 122 00:08:15,786 --> 00:08:19,624 It really is an impressive, predator on predator interaction, that's for sure. 123 00:08:30,051 --> 00:08:32,136 NARRATOR: In 2017, 124 00:08:32,220 --> 00:08:35,306 a predator-on-predator interaction of another kind 125 00:08:35,389 --> 00:08:39,352 took place along the coast of South Africa. 126 00:08:39,435 --> 00:08:44,315 Five dead great white sharks washed up on local beaches. 127 00:08:45,274 --> 00:08:47,527 The news is shocking. 128 00:08:47,610 --> 00:08:50,613 Scientists conducted an investigation. 129 00:08:50,696 --> 00:08:54,659 Of all the evidence collected, it was the bite marks on the 130 00:08:54,742 --> 00:08:57,995 shark bodies that revealed the killers. 131 00:08:58,079 --> 00:09:01,249 The teeth marks belonged to orca. 132 00:09:05,670 --> 00:09:09,173 Stranger still, the killer whales had taken only 133 00:09:09,257 --> 00:09:14,428 the shark livers and left the rest of the bodies untouched. 134 00:09:14,512 --> 00:09:18,182 This was the first recorded case of orcas killing 135 00:09:18,266 --> 00:09:20,851 white sharks in South Africa. 136 00:09:20,935 --> 00:09:23,729 Shark and orca scientists wondered when and where it 137 00:09:23,813 --> 00:09:26,232 might happen again. 138 00:09:26,315 --> 00:09:29,026 INGRID: We can't rule out that the orca here in New Zealand 139 00:09:29,110 --> 00:09:31,862 could hunt great white sharks in exactly the same way. 140 00:09:38,953 --> 00:09:42,123 NARRATOR: The Foveaux Strait sits at the southern end 141 00:09:42,206 --> 00:09:43,916 of New Zealand. 142 00:09:44,000 --> 00:09:48,546 Over 6,000 miles to the east of South Africa. 143 00:09:50,131 --> 00:09:53,718 Both regions have large populations of great whites 144 00:09:53,801 --> 00:09:56,887 and roaming pods of orca. 145 00:09:56,971 --> 00:10:00,224 A combination that resulted in a fatal confrontation 146 00:10:00,308 --> 00:10:02,101 in South Africa. 147 00:10:02,184 --> 00:10:06,230 And if white sharks and orca ever cross paths in New Zealand, 148 00:10:06,314 --> 00:10:08,899 this is where it could happen, 149 00:10:08,983 --> 00:10:10,985 in the Foveaux Strait. 150 00:10:14,322 --> 00:10:18,284 ♪ ♪ 151 00:10:23,831 --> 00:10:25,583 KINA: We've got a couple of good players here. 152 00:10:25,666 --> 00:10:28,711 There's two sharks that are pretty boisterous. 153 00:10:37,762 --> 00:10:39,263 It's pretty cool! 154 00:10:40,014 --> 00:10:41,891 NARRATOR: Large, boisterous, 155 00:10:41,974 --> 00:10:45,269 and aggressive great white sharks. 156 00:10:47,021 --> 00:10:49,649 What possible motive could an orca have for attacking 157 00:10:49,732 --> 00:10:51,734 a great white? 158 00:10:51,817 --> 00:10:54,779 There isn't a clear answer. 159 00:10:54,862 --> 00:10:58,074 But to Ingrid, it makes some sense. 160 00:10:59,492 --> 00:11:01,243 INGRID (off-screen): Typically, in New Zealand, 161 00:11:01,327 --> 00:11:03,537 the orcas are not just targeting prey to take 162 00:11:03,621 --> 00:11:05,081 the whole thing. 163 00:11:05,164 --> 00:11:08,250 They're focused on particular parts of them 164 00:11:08,334 --> 00:11:09,877 and that's the liver! 165 00:11:11,337 --> 00:11:14,882 NARRATOR: When the South African orcas killed the great whites, 166 00:11:14,965 --> 00:11:17,927 this is what they did. 167 00:11:18,010 --> 00:11:21,806 Hunting for liver with great precision. 168 00:11:28,521 --> 00:11:31,524 Liver is a prize for any predator. 169 00:11:31,607 --> 00:11:37,029 To hunt, mate, and migrate thousands of miles, 170 00:11:37,113 --> 00:11:39,699 takes energy. 171 00:11:42,535 --> 00:11:45,454 Liver is pure fuel. 172 00:11:45,538 --> 00:11:49,291 So when they hunt, they're filling the tank. 173 00:11:54,463 --> 00:11:58,634 New Zealand orca feed on the 25 species of rays and 174 00:11:58,718 --> 00:12:02,096 skates that swim in local waters. 175 00:12:02,179 --> 00:12:06,559 The preference for rays is unique to orca in New Zealand. 176 00:12:08,102 --> 00:12:11,605 But recently local orca have acquired 177 00:12:11,689 --> 00:12:14,650 a taste for shark liver. 178 00:12:14,734 --> 00:12:19,238 From a smaller cousin of the great white, the sevengill. 179 00:12:25,244 --> 00:12:28,664 And evidence suggests South African orca 180 00:12:28,748 --> 00:12:32,001 started on sevengill sharks 181 00:12:34,420 --> 00:12:39,049 and graduated to great whites. 182 00:12:46,056 --> 00:12:48,642 NARRATOR: Ingrid Visser and Kina Scollay are looking for 183 00:12:48,726 --> 00:12:52,104 evidence that orca are hunting great white sharks 184 00:12:52,188 --> 00:12:54,690 in New Zealand waters. 185 00:12:54,774 --> 00:12:57,943 Ingrid has evidence that there's a disturbing pattern 186 00:12:58,027 --> 00:13:00,696 in orca hunting. 187 00:13:00,780 --> 00:13:04,074 New Zealand orca are hunting sevengill sharks, 188 00:13:04,158 --> 00:13:08,454 just like the South African orca. 189 00:13:09,789 --> 00:13:13,918 Sevengill sharks grow to nine feet long and 200 pounds. 190 00:13:14,001 --> 00:13:18,631 A much larger meal for an orca than a small ray. 191 00:13:18,714 --> 00:13:22,802 But the sevengill shark is no easy prey. 192 00:13:23,969 --> 00:13:26,472 INGRID: Sevengills are relatively new on the orca menu, 193 00:13:26,555 --> 00:13:28,974 but I've seen it a few times now. 194 00:13:29,058 --> 00:13:31,477 INGRID (off-screen): You see the orca, and they're very, 195 00:13:31,560 --> 00:13:33,229 very precise in how they do it. 196 00:13:33,312 --> 00:13:36,273 I've got footage of the orca with the sevengills where 197 00:13:36,357 --> 00:13:37,733 they've ripped the pectoral fin, 198 00:13:37,817 --> 00:13:39,026 right under the pectoral girdle there. 199 00:13:39,109 --> 00:13:40,152 KINA (off-screen): Right. 200 00:13:40,236 --> 00:13:41,779 INGRID: And they've extracted the liver. 201 00:13:42,988 --> 00:13:45,407 WOMAN (off-screen): Wee! Oh, there's a shark. 202 00:13:45,491 --> 00:13:47,076 WOMAN (off-screen): Oh, shark. Shark. 203 00:13:47,159 --> 00:13:50,037 INGRID (off-screen): One of the things I find fascinating is how the 204 00:13:50,120 --> 00:13:52,414 sevengills will actually turn and defend themselves 205 00:13:52,498 --> 00:13:54,375 against the orca. 206 00:13:59,004 --> 00:14:00,422 The way the orca hunt the sevengills 207 00:14:00,506 --> 00:14:02,258 is pretty impressive. 208 00:14:02,341 --> 00:14:05,594 First of all they'll come in and they'll karate chop the shark, 209 00:14:05,678 --> 00:14:07,263 so they'll just come and lift their tail up and 210 00:14:07,346 --> 00:14:09,223 whack them on the back. 211 00:14:14,854 --> 00:14:17,439 Then they grab the sharks by the pectoral fin and rip them 212 00:14:17,523 --> 00:14:19,275 open and pull the livers out. 213 00:14:21,193 --> 00:14:23,946 NARRATOR: Ingrid captured rare footage of orcas hunting 214 00:14:24,029 --> 00:14:26,782 sevengills in Northern New Zealand. 215 00:14:34,790 --> 00:14:39,879 ♪ ♪ 216 00:14:46,594 --> 00:14:51,140 Their precision in hunting for shark liver is clear. 217 00:14:59,064 --> 00:15:01,859 KINA (off-screen): What's really fascinating is that in South Africa, 218 00:15:01,942 --> 00:15:04,695 the orca started by hunting sevengills, 219 00:15:04,778 --> 00:15:08,699 and then they moved on to the great white sharks. 220 00:15:08,782 --> 00:15:11,493 So knowing what's gone on in South Africa, 221 00:15:11,577 --> 00:15:15,956 what concerns me is exactly the same thing could happen here. 222 00:15:18,751 --> 00:15:21,587 NARRATOR: A concentration of sevengill sharks lives up 223 00:15:21,670 --> 00:15:24,423 along the western coast of New Zealand. 224 00:15:25,382 --> 00:15:27,885 Kina has dived with them for years, 225 00:15:27,968 --> 00:15:31,055 knows just where they live, and how they behave. 226 00:15:31,138 --> 00:15:32,181 KINA (over radio): Beautiful. 227 00:15:33,974 --> 00:15:36,518 NARRATOR: They decide to drop in and see if the sevengills 228 00:15:36,602 --> 00:15:39,688 can give them any clues. 229 00:15:43,484 --> 00:15:45,945 Fiordland National Park is a vast, 230 00:15:46,028 --> 00:15:48,238 remote wilderness on the western shore 231 00:15:48,322 --> 00:15:50,866 of New Zealand's south island. 232 00:15:50,950 --> 00:15:55,412 Most areas are accessible only by helicopter or boat. 233 00:15:55,496 --> 00:15:56,705 KINA (over radio): You know really, 234 00:15:56,789 --> 00:15:58,248 you fly over these mountains and 235 00:15:58,332 --> 00:16:01,126 you're in a completely different world, 236 00:16:01,210 --> 00:16:02,544 and then under the water, 237 00:16:02,628 --> 00:16:03,963 it's completely different again. 238 00:16:04,046 --> 00:16:06,799 Different to just about anywhere else you'll dive. 239 00:16:06,882 --> 00:16:08,133 Amazing. 240 00:16:10,010 --> 00:16:11,720 NARRATOR: These deep fiords are murky, 241 00:16:11,804 --> 00:16:15,057 stained with tannins from the ancient forest. 242 00:16:15,140 --> 00:16:18,727 It makes the water dark, even in the middle of the day. 243 00:16:22,815 --> 00:16:25,359 If orcas came here to hunt sevengills, 244 00:16:25,442 --> 00:16:29,321 it's possible no one would ever know. 245 00:16:29,822 --> 00:16:32,658 KINA (over radio): I actually haven't been in here for about two years. 246 00:16:32,741 --> 00:16:34,076 INGRID (over radio): Wow. 247 00:16:34,159 --> 00:16:36,078 KINA (over radio): And that's after diving here month in, 248 00:16:36,161 --> 00:16:39,415 month out for many years, and I really felt like 249 00:16:39,498 --> 00:16:41,667 I knew these sevengills so well. 250 00:16:41,750 --> 00:16:43,794 All this talk about orca eating them, 251 00:16:43,877 --> 00:16:46,422 I just kind of want to come and have a look. 252 00:16:46,505 --> 00:16:47,881 INGRID (over radio): Yeah. 253 00:16:47,965 --> 00:16:49,341 Absolutely Kina, and I mean look, 254 00:16:49,425 --> 00:16:51,760 that ties in with the sightings we've had recently 255 00:16:51,844 --> 00:16:53,804 of the orca coming down this bit of coastline, 256 00:16:53,887 --> 00:16:56,807 so I'd be fascinated to know if they're coming up here 257 00:16:56,890 --> 00:16:58,100 to your sevengills. 258 00:17:01,562 --> 00:17:04,565 NARRATOR: The only place for Kina and Ingrid to land is on 259 00:17:04,648 --> 00:17:08,068 a small fishing trawler, in the middle of nowhere. 260 00:17:13,866 --> 00:17:17,077 KINA (off-screen): My little secret spot is only just literally one 261 00:17:17,161 --> 00:17:18,746 minute's flying time from here, 262 00:17:18,829 --> 00:17:21,874 so I think it's easiest if I gear up here. 263 00:17:21,957 --> 00:17:23,250 INGRID (off-screen): Right. Yeah. 264 00:17:23,333 --> 00:17:24,793 KINA (off-screen): And then I'm gonna hop in the helicopter, 265 00:17:24,877 --> 00:17:27,087 just buzz around there and bomb in! 266 00:17:31,675 --> 00:17:35,429 ♪ ♪ 267 00:17:41,977 --> 00:17:44,480 NARRATOR: Diving without a cage, 268 00:17:44,563 --> 00:17:47,524 Kina will have to be careful of the sevengills 269 00:17:47,608 --> 00:17:50,194 and keep an eye out for orca. 270 00:17:50,986 --> 00:17:54,198 They could be anywhere. 271 00:17:58,952 --> 00:18:00,662 NARRATOR: Kina Scollay is paying a visit to an 272 00:18:00,746 --> 00:18:03,332 aggregation of sevengill sharks in 273 00:18:03,415 --> 00:18:06,418 Fiordland National Park, New Zealand. 274 00:18:11,590 --> 00:18:14,676 And knows just where to find them. 275 00:18:19,264 --> 00:18:22,976 He's looking for any signs that orca are hunting 276 00:18:23,060 --> 00:18:24,895 these sevengill sharks. 277 00:18:30,192 --> 00:18:34,530 ♪ ♪ 278 00:18:43,789 --> 00:18:48,168 KINA: The murky water really works well for these guys. 279 00:18:50,629 --> 00:18:53,215 You just can't see them coming. 280 00:19:01,306 --> 00:19:03,767 As they're approaching, you just see the 281 00:19:04,226 --> 00:19:06,937 white under their mouth. 282 00:19:09,690 --> 00:19:12,359 Looks like an evil kind of Joker grin. 283 00:19:13,152 --> 00:19:15,988 And then a shark materializes out of the murk. 284 00:19:19,825 --> 00:19:22,911 NARRATOR: The sevengills are here, 285 00:19:22,995 --> 00:19:26,498 drifting in and out of sight. 286 00:19:30,169 --> 00:19:33,213 Checking out the intruder. 287 00:19:35,048 --> 00:19:39,595 KINA: Scientists have found remains of really big animals inside them. 288 00:19:40,846 --> 00:19:44,224 Prey items as big, or bigger, than a human. 289 00:19:44,725 --> 00:19:49,855 And really, the only way they could do this is if they're pack hunting. 290 00:19:53,400 --> 00:19:55,903 When you see one coming out of the murk, 291 00:19:56,403 --> 00:20:00,032 you almost know there'll be another one coming from one side, 292 00:20:02,201 --> 00:20:03,827 and if you look the other way, 293 00:20:03,911 --> 00:20:06,413 there'll be another one sneaking in there, too. 294 00:20:12,294 --> 00:20:13,420 KINA (over radio): Whoa! 295 00:20:14,213 --> 00:20:15,672 KINA: And they're relentless! 296 00:20:27,559 --> 00:20:30,479 Well, it's good to see that these sevengills are here 297 00:20:30,562 --> 00:20:32,898 and up to their usual tricks. 298 00:20:36,777 --> 00:20:38,904 But to be honest, 299 00:20:41,365 --> 00:20:44,243 there's less than I expected to find on this dive. 300 00:20:46,245 --> 00:20:48,413 NARRATOR: Sevengills may be prey for orca, 301 00:20:48,497 --> 00:20:52,000 but these sharks are no pushovers. 302 00:20:52,626 --> 00:20:54,294 KINA: Oh, this one means business! 303 00:20:57,923 --> 00:21:01,468 But it's the ones that sneak up behind that I really have to worry about. 304 00:21:04,096 --> 00:21:05,347 Whoa, I like this guy! 305 00:21:07,307 --> 00:21:09,726 Yeah, these guys are revving up a bit much for me. 306 00:21:12,813 --> 00:21:16,483 I think it's time to get out before they take control of the situation. 307 00:21:24,783 --> 00:21:27,577 That was awesome to go and visit those guys. 308 00:21:27,661 --> 00:21:29,871 INGRID: Yeah, great jump! KINA: Yeah, cheers mate. 309 00:21:29,955 --> 00:21:34,710 KINA (off-screen): That splash and the, and the noise of the helicopter really has to 310 00:21:34,793 --> 00:21:38,255 attract them and they were straight on top of me when I got in, 311 00:21:38,338 --> 00:21:41,341 but not as many as I would've expected to see. 312 00:21:41,425 --> 00:21:42,551 INGRID: Really? 313 00:21:42,634 --> 00:21:45,220 Okay, well that's really interesting because given that 314 00:21:45,304 --> 00:21:47,389 we know historically that orca are coming in here, 315 00:21:47,472 --> 00:21:49,182 and we've had the reports recently, 316 00:21:49,266 --> 00:21:51,685 and now you're seeing less sharks in here too, so, 317 00:21:51,768 --> 00:21:55,480 you know, it's indicative that something's been going on, right? 318 00:21:59,443 --> 00:22:01,903 NARRATOR: Lower sevengill numbers could mean a few 319 00:22:01,987 --> 00:22:06,533 things are going on including predation by larger predators, 320 00:22:06,616 --> 00:22:09,411 like orcas. 321 00:22:10,329 --> 00:22:13,582 That would mark a change in their usual diet. 322 00:22:17,294 --> 00:22:21,506 Traditionally, New Zealand orca hunt the many species 323 00:22:21,590 --> 00:22:25,886 of rays and skates that live in these waters. 324 00:22:27,179 --> 00:22:32,309 Like, all dolphins, they have a special ability to find them. 325 00:22:32,392 --> 00:22:34,436 INGRID: Orca hunt using echolocation, 326 00:22:34,519 --> 00:22:38,231 which is a series of clicks that they send out that bounce 327 00:22:38,315 --> 00:22:41,068 back and give them incredible information. 328 00:22:42,027 --> 00:22:45,572 They can tell even if a shark has a full tummy. 329 00:22:46,281 --> 00:22:48,533 NARRATOR: It works like sonar. 330 00:22:49,534 --> 00:22:52,412 The orca can detect their prey even when it's buried 331 00:22:52,496 --> 00:22:54,247 in the sand. 332 00:22:57,042 --> 00:23:00,712 But, filling up on rays and skates can be hard work 333 00:23:00,796 --> 00:23:03,715 and burn a lot of precious energy. 334 00:23:07,969 --> 00:23:08,970 KINA: All right. 335 00:23:09,054 --> 00:23:10,138 INGRID (off-screen): Do you see them? 336 00:23:10,222 --> 00:23:11,348 Look, they're in a really tight group over here. 337 00:23:11,431 --> 00:23:12,766 Right there. 338 00:23:14,309 --> 00:23:16,812 NARRATOR: Many rays are bottom feeders, 339 00:23:16,895 --> 00:23:20,315 and spend much of their time on or buried in the sandy 340 00:23:20,399 --> 00:23:22,526 ocean floor. 341 00:23:23,819 --> 00:23:28,156 Orca jaws are not designed to grab them off the bottom, 342 00:23:28,240 --> 00:23:31,201 so the orca work together. 343 00:23:32,160 --> 00:23:36,456 Chasing the rays upward and catching them in the open. 344 00:23:41,753 --> 00:23:45,090 But ray hunts don't always go smoothly. 345 00:23:47,134 --> 00:23:51,430 Rays often flee to shallower water, 346 00:23:57,602 --> 00:24:01,356 making it dangerous for the orca. 347 00:24:05,861 --> 00:24:08,280 There is the risk of a fatal stranding 348 00:24:08,363 --> 00:24:10,991 as the tide goes out. 349 00:24:20,959 --> 00:24:25,297 And the ray may still escape. 350 00:24:30,635 --> 00:24:33,597 NARRATOR: When orca hunt rays in New Zealand, 351 00:24:33,680 --> 00:24:37,017 their size is not always an advantage. 352 00:24:40,312 --> 00:24:43,815 ♪ ♪ 353 00:24:49,196 --> 00:24:54,367 After a lot of work and coordinated effort among several orca, 354 00:24:57,496 --> 00:25:00,790 they catch the ray 355 00:25:00,874 --> 00:25:04,878 but it's a tiny payoff for all that effort. 356 00:25:07,172 --> 00:25:12,052 And compared with white sharks rays are a snack. 357 00:25:13,512 --> 00:25:16,723 One 700-pound great white shark liver could be 358 00:25:16,806 --> 00:25:21,436 equivalent to nearly 175 ray livers. 359 00:25:21,520 --> 00:25:25,148 And it's a lot more work to hunt multiple rays. 360 00:25:26,691 --> 00:25:30,278 While it is more dangerous to hunt a single great white, 361 00:25:30,362 --> 00:25:33,532 it might be worth the risk. 362 00:25:40,080 --> 00:25:43,124 KINA: It's really hard not to think when you see animals 363 00:25:43,208 --> 00:25:45,377 that big that their liver must be 364 00:25:45,460 --> 00:25:47,837 gold to a liver-eating orca. 365 00:25:48,880 --> 00:25:53,009 NARRATOR: A great white liver can grow to 25% of the shark's 366 00:25:53,093 --> 00:25:55,220 total weight. 367 00:25:55,303 --> 00:25:58,139 If a 12-foot great white weighs 1,000 pounds, 368 00:25:58,223 --> 00:26:02,686 it may have a liver weighing 250 pounds. 369 00:26:04,104 --> 00:26:07,190 A big pay-off for the orca. 370 00:26:16,908 --> 00:26:20,662 Kina and Ingrid are off one of the Foveaux Strait's large 371 00:26:20,745 --> 00:26:22,956 colonies of seals. 372 00:26:27,252 --> 00:26:31,381 Over the summer, the white sharks consume many. 373 00:26:33,425 --> 00:26:37,512 Their livers are swollen with seal blubber and oil. 374 00:26:39,472 --> 00:26:43,018 Ingrid and Kina are looking at the length of the sharks 375 00:26:43,101 --> 00:26:45,353 to estimate their liver weight. 376 00:26:45,812 --> 00:26:48,565 INGRID: There's one coming up from the starboard side there. 377 00:26:51,151 --> 00:26:52,569 That's coming right in at us. 378 00:26:55,780 --> 00:26:57,824 How big do you think that one is, Kina? 379 00:26:58,450 --> 00:27:01,453 KINA: See, that male there is quite a bit smaller. 380 00:27:02,412 --> 00:27:05,832 And he's well longer than this cage is wide, so, 381 00:27:06,207 --> 00:27:07,500 probably... 382 00:27:08,084 --> 00:27:10,170 three and a half meters? 383 00:27:11,963 --> 00:27:15,550 It's still three or four times bigger than any of the sevengills 384 00:27:15,634 --> 00:27:17,719 I saw on the dive the other day. 385 00:27:19,638 --> 00:27:23,058 NARRATOR: Great white sharks as prey for anything, 386 00:27:23,141 --> 00:27:26,227 even orca, is hard to fathom. 387 00:27:26,311 --> 00:27:29,773 But the orca may see them that way. 388 00:27:29,856 --> 00:27:31,733 INGRID: All our evidence points to the fact that the 389 00:27:31,816 --> 00:27:35,987 New Zealand orca have a very strong culture of hunting sharks. 390 00:27:38,365 --> 00:27:43,119 INGRID (off-screen): If the rays were removed from the food web here in New Zealand, 391 00:27:43,203 --> 00:27:48,583 chances are the orca would shift their food preferences. 392 00:27:49,876 --> 00:27:54,255 And they could start targeting great white sharks in earnest. 393 00:27:54,339 --> 00:27:57,425 NARRATOR: So far the supply of rays and skates 394 00:27:57,509 --> 00:27:59,302 has been ample. 395 00:27:59,386 --> 00:28:03,765 But add warming oceans to natural fluctuations in all 396 00:28:03,848 --> 00:28:07,185 animal populations and it's hard to predict 397 00:28:07,268 --> 00:28:08,436 what will happen. 398 00:28:09,729 --> 00:28:12,190 INGRID: Looks like the size of a horse. 399 00:28:14,859 --> 00:28:18,405 A shark that size, the liver has to be absolutely huge. 400 00:28:23,118 --> 00:28:25,370 KINA: I think we can pretty accurately say 401 00:28:26,037 --> 00:28:30,125 it's 4.2 meters long, or even a little bit bigger. 402 00:28:31,167 --> 00:28:37,215 And that weighs something like 1200 kilos, or 2500 pounds. 403 00:28:42,053 --> 00:28:44,723 That's a mighty, mighty feed for a 404 00:28:44,806 --> 00:28:46,349 liver-eating orca. 405 00:28:49,686 --> 00:28:53,690 INGRID: I think a shark that size would be a feast for a whole family, mate. 406 00:28:54,232 --> 00:28:55,692 Not just one orca! 407 00:28:58,403 --> 00:29:00,572 Is it just me, Kina, or are the circles that they're making 408 00:29:00,655 --> 00:29:02,949 getting smaller and smaller? 409 00:29:04,075 --> 00:29:05,660 KINA: I think you're dead right, mate. 410 00:29:11,958 --> 00:29:13,626 INGRID: Is it behind us? 411 00:29:14,836 --> 00:29:16,546 Under the boat! 412 00:29:17,130 --> 00:29:18,381 Here he comes again, eh? 413 00:29:26,931 --> 00:29:29,392 NARRATOR: The half dozen white sharks swimming by 414 00:29:29,476 --> 00:29:32,687 are more than impressive. 415 00:29:32,771 --> 00:29:38,234 To an orca, they may represent the food value of 1,000 rays. 416 00:29:38,693 --> 00:29:41,237 KINA: There's another huge one. Here we go! 417 00:29:43,198 --> 00:29:47,243 If that other one that we saw earlier was 4.2 meters, 418 00:29:47,327 --> 00:29:50,205 I would say that she would have to be 419 00:29:50,288 --> 00:29:55,960 well over four and a half meters. Probably close to 15 or 16 feet. 420 00:29:56,795 --> 00:29:59,631 NARRATOR: At 16 feet, this one great white shark alone 421 00:29:59,714 --> 00:30:03,885 is the equivalent of 200 rays to a hungry orca. 422 00:30:03,968 --> 00:30:06,346 It might be a motive for predation. 423 00:30:06,846 --> 00:30:10,433 INGRID: Compared to the size of a ray liver, which is just a few pounds, 424 00:30:10,517 --> 00:30:14,437 a couple of kilos at most, to the size of a liver of these guys, 425 00:30:14,521 --> 00:30:17,315 it's no wonder the orca would want to target them. 426 00:30:19,442 --> 00:30:20,568 KINA (off-screen): It's hard not to think, 427 00:30:20,652 --> 00:30:22,362 an animal as intelligent as the orca, 428 00:30:22,445 --> 00:30:25,114 that they're coming through here at the perfect time 429 00:30:25,198 --> 00:30:26,950 of year, when the livers are fat, 430 00:30:27,033 --> 00:30:29,536 they've gotta see this as a food source. 431 00:30:29,619 --> 00:30:31,079 And even though it's high risk, 432 00:30:31,162 --> 00:30:33,706 we've seen in South Africa that they can decide 433 00:30:33,790 --> 00:30:34,874 it's worth it. 434 00:30:34,958 --> 00:30:36,125 There's such a food source there. 435 00:30:36,209 --> 00:30:37,669 INGRID: Oh, absolutely. 436 00:30:37,752 --> 00:30:39,587 KINA: You've gotta wonder whether they're not already 437 00:30:39,671 --> 00:30:40,922 onto this. 438 00:30:41,005 --> 00:30:42,632 It may have been going on for a long time in New Zealand but 439 00:30:42,715 --> 00:30:43,758 we've just never heard about it. 440 00:30:43,842 --> 00:30:44,884 INGRID: Just, yeah, exactly. 441 00:30:50,557 --> 00:30:53,560 NARRATOR: Ingrid and Kina have found many similarities 442 00:30:53,643 --> 00:30:57,063 between New Zealand and South Africa. 443 00:31:00,233 --> 00:31:04,737 In both places, the orca already have a taste 444 00:31:04,821 --> 00:31:07,198 for sevengill sharks. 445 00:31:10,034 --> 00:31:14,455 But after the orca killed five great whites in South Africa, 446 00:31:14,539 --> 00:31:17,959 all the other white sharks disappeared. 447 00:31:18,835 --> 00:31:22,130 In New Zealand, all of these sharks 448 00:31:22,213 --> 00:31:26,009 are still here and hunting. 449 00:31:34,601 --> 00:31:37,770 Then, like a bolt from the blue, 450 00:31:37,854 --> 00:31:42,191 Kina and Ingrid finally see what they've been looking for. 451 00:31:42,275 --> 00:31:43,318 INGRID: Wow! 452 00:31:44,527 --> 00:31:46,404 That didn't look like shark bites. 453 00:31:47,572 --> 00:31:48,907 KINA: That really is phenomenal! 454 00:31:55,580 --> 00:31:59,334 NARRATOR: Kina and Ingrid are observing local white shark behavior, 455 00:31:59,417 --> 00:32:03,630 when a male with a wound catches their eye. 456 00:32:06,925 --> 00:32:08,426 KINA: Wow! 457 00:32:08,760 --> 00:32:12,138 One has got big, white rake marks on his dorsal. 458 00:32:13,514 --> 00:32:16,100 INGRID: They didn't look like shark bites. 459 00:32:17,435 --> 00:32:19,562 Should have a look and see if it's orca bite marks! 460 00:32:21,189 --> 00:32:22,482 KINA: You're right! That's interesting. 461 00:32:22,982 --> 00:32:25,526 I'll try to get some close shots of it, so we can have a look 462 00:32:25,610 --> 00:32:28,029 later on, see if we can figure out what they are. 463 00:32:28,821 --> 00:32:30,239 INGRID: It's coming up on your left, right there, Kina. 464 00:32:31,616 --> 00:32:32,867 The one with the rake marks. 465 00:32:37,288 --> 00:32:40,541 That's the guy we want. We just want him to come in a bit closer, eh? 466 00:32:46,965 --> 00:32:49,759 NARRATOR: An unusual mark on a white shark's dorsal fin 467 00:32:49,842 --> 00:32:52,303 looks like a bite. 468 00:32:53,888 --> 00:32:56,975 INGRID: He's just swum towards the bow. 469 00:32:57,475 --> 00:33:00,937 He's just coming down the port side of the boat at the moment. 470 00:33:04,649 --> 00:33:06,150 Coming in close now. 471 00:33:13,282 --> 00:33:14,283 Wow! 472 00:33:14,409 --> 00:33:17,078 Those rake marks look really distinctive. 473 00:33:26,004 --> 00:33:27,588 KINA: What were those rake marks on the fin? 474 00:33:27,672 --> 00:33:28,715 That was fascinating. 475 00:33:28,798 --> 00:33:29,882 INGRID: Yeah. 476 00:33:29,966 --> 00:33:32,260 KINA: They were quite wide apart and very straight, 477 00:33:32,343 --> 00:33:33,386 which was interesting. 478 00:33:33,469 --> 00:33:34,470 INGRID (off-screen): Yes. 479 00:33:34,554 --> 00:33:36,472 KINA (off-screen): And those were uniform. That was something new to me. 480 00:33:36,556 --> 00:33:37,765 INGRID: Yeah. 481 00:33:37,849 --> 00:33:39,434 And it looks very similar to what I see in the stingrays 482 00:33:39,517 --> 00:33:41,477 when the orca have been biting them. 483 00:33:41,561 --> 00:33:44,147 You know, you get these sort of like someone's raked the garden, 484 00:33:44,230 --> 00:33:45,815 but it's teeth rake marks, 485 00:33:45,898 --> 00:33:47,984 and that's what it looked like to me. 486 00:33:52,572 --> 00:33:54,657 Yeah, so let me show you these. 487 00:33:54,741 --> 00:33:59,996 This is a picture of an orca's teeth. 488 00:34:00,079 --> 00:34:01,748 See how the teeth curve backwards? 489 00:34:01,831 --> 00:34:04,792 And so here, this is a close up of these teeth marks, 490 00:34:04,876 --> 00:34:08,296 and this is what I think we saw on that great white shark. 491 00:34:08,379 --> 00:34:09,756 KINA (off-screen): Yeah, amazing. 492 00:34:12,383 --> 00:34:14,260 INGRID: And when you look at the scale on here. 493 00:34:14,343 --> 00:34:15,678 KINA: Same thing, that was what we saw on that shark! 494 00:34:15,762 --> 00:34:17,055 INGRID: Matched with what we saw. Yeah. 495 00:34:17,138 --> 00:34:19,932 So if I had to put money on it, I would say it was orca. 496 00:34:20,016 --> 00:34:21,642 KINA (off-screen): Well, I certainly can't think of anything else, 497 00:34:21,726 --> 00:34:22,852 and that is pretty phenomenal. 498 00:34:22,935 --> 00:34:24,395 INGRID (off-screen): Sure. 499 00:34:24,479 --> 00:34:26,147 KINA (off-screen): This could well be the evidence we're looking for. 500 00:34:26,230 --> 00:34:28,941 NARRATOR: The bite marks could be a breakthrough. 501 00:34:29,025 --> 00:34:32,111 The first visible sign of orca-on-white shark predation 502 00:34:32,195 --> 00:34:33,863 they've seen. 503 00:34:38,701 --> 00:34:42,497 Ingrid and Kina devise an experiment that will use sound 504 00:34:42,580 --> 00:34:44,373 instead of sight. 505 00:34:44,457 --> 00:34:46,542 INGRID: Orca use a range of different sounds. 506 00:34:46,626 --> 00:34:49,337 They use clicks for echolocation, 507 00:34:49,420 --> 00:34:52,006 they use whistles and pulsed calls when 508 00:34:52,090 --> 00:34:53,925 they're communicating. 509 00:34:54,008 --> 00:34:55,885 It's really impressive. 510 00:34:56,803 --> 00:34:59,305 NARRATOR: So they'll use recorded whale sounds and 511 00:34:59,388 --> 00:35:01,682 observe how the sharks react. 512 00:35:04,185 --> 00:35:07,271 KINA (off-screen): It's a little known fact about great white sharks that 513 00:35:07,355 --> 00:35:09,857 they actually have amazing hearing. 514 00:35:10,942 --> 00:35:14,946 So I think if the great white sharks react to orca sounds, 515 00:35:15,029 --> 00:35:17,782 that might mean that they've met them before. 516 00:35:17,865 --> 00:35:21,369 How they react could possibly even tell us, 517 00:35:21,452 --> 00:35:25,081 whether that experience was hunting, or otherwise. 518 00:35:25,164 --> 00:35:29,127 So this experiment is going to be very interesting. 519 00:35:31,337 --> 00:35:33,047 NARRATOR: They mount an underwater speaker 520 00:35:33,131 --> 00:35:34,882 on the dive cage. 521 00:35:34,966 --> 00:35:38,928 The plan, play sounds from several other kinds of whales first. 522 00:35:39,011 --> 00:35:40,221 INGRID: Here you go. 523 00:35:40,304 --> 00:35:41,556 NARRATOR: To try and draw the sharks in. 524 00:35:41,639 --> 00:35:42,932 INGRID (off-screen): Oh, that's perfect. 525 00:35:43,015 --> 00:35:44,934 NARRATOR: Once white sharks are around the cage, 526 00:35:45,017 --> 00:35:49,272 Ingrid will play the sounds of New Zealand orcas hunting. 527 00:35:49,355 --> 00:35:50,606 KINA: Done. 528 00:35:50,690 --> 00:35:54,402 It will be interesting to see if they are actually scared of 529 00:35:54,485 --> 00:35:57,071 orca or if they, you know, if they know what it's like 530 00:35:57,155 --> 00:35:58,156 to be scared of something! 531 00:36:03,578 --> 00:36:06,289 ♪ ♪ 532 00:36:13,880 --> 00:36:15,506 INGRID: Do you copy me, Kina? 533 00:36:16,090 --> 00:36:19,010 KINA: Roger, Ingrid, loud and clear. 534 00:36:19,677 --> 00:36:20,970 I guess we're good to go! 535 00:36:22,889 --> 00:36:24,348 INGRID: Well, look I'm gonna start playing the first set 536 00:36:24,432 --> 00:36:25,516 of sounds now. 537 00:36:25,600 --> 00:36:28,311 This is the humpback whale calls that you recorded. 538 00:36:28,895 --> 00:36:30,688 KINA: Roger that. Go right ahead. 539 00:36:35,359 --> 00:36:37,528 (humpback whale singing over PA) 540 00:36:37,612 --> 00:36:41,866 NARRATOR: This is humpback whale song, 541 00:36:41,949 --> 00:36:46,621 and possibly a great white dinner bell. 542 00:36:48,372 --> 00:36:51,000 White sharks are known to hunt whale calves 543 00:36:51,083 --> 00:36:53,044 in the tropical pacific. 544 00:36:55,463 --> 00:36:58,841 KINA: Well, that certainly got a couple of people interested! 545 00:36:59,759 --> 00:37:02,595 (humpback whale singing over PA) 546 00:37:10,144 --> 00:37:14,065 Oh, yep, all of a sudden we've got three sharks right on top of us. 547 00:37:17,902 --> 00:37:21,072 NARRATOR: The circling great whites begin to rush the 548 00:37:21,155 --> 00:37:22,865 speaker and the cage. 549 00:37:26,410 --> 00:37:27,703 KINA: The sharks are just 550 00:37:27,787 --> 00:37:32,250 all over the cage, and all over the side that the speaker's on. 551 00:37:32,333 --> 00:37:36,671 It's hard not to think that they're reacting to that sound, to be honest. 552 00:37:41,467 --> 00:37:45,721 ♪ ♪ 553 00:37:53,145 --> 00:37:55,022 (humpback whale singing over PA) 554 00:37:57,775 --> 00:37:58,818 Wow! 555 00:37:59,277 --> 00:38:02,530 Ingrid, we've just got that, uh, 556 00:38:02,613 --> 00:38:08,661 shark with the two big rake marks on its dorsal fin back again! 557 00:38:10,496 --> 00:38:11,914 Look at that! 558 00:38:17,086 --> 00:38:21,632 ♪ ♪ 559 00:38:24,051 --> 00:38:26,470 NARRATOR: The sharks are clearly responding to the 560 00:38:26,554 --> 00:38:28,389 humpback whale sounds. 561 00:38:28,472 --> 00:38:32,435 The question is, how will they react to the sound 562 00:38:32,518 --> 00:38:35,313 of New Zealand killer whales? 563 00:38:41,819 --> 00:38:44,238 NARRATOR: Ingrid Visser and Kina Scollay want to see how 564 00:38:44,322 --> 00:38:48,242 great whites react to the sounds of hunting orca. 565 00:38:50,036 --> 00:38:53,831 First, as a test, they play humpback whale song. 566 00:38:56,417 --> 00:38:59,170 The sharks come straight to the sound. 567 00:39:03,716 --> 00:39:04,800 KINA: Whoa! 568 00:39:05,634 --> 00:39:07,803 NARRATOR: Including the shark with the bite marks 569 00:39:07,887 --> 00:39:09,388 on its dorsal fin. 570 00:39:13,851 --> 00:39:16,687 They have to wait a few minutes for the sharks to 571 00:39:16,771 --> 00:39:20,024 settle down after the humpback reaction. 572 00:39:23,194 --> 00:39:24,653 INGRID: Now I'm just gonna play you the sounds from the 573 00:39:24,737 --> 00:39:27,990 orca that eat the salmon, I recorded these guys off 574 00:39:28,074 --> 00:39:29,158 North America. 575 00:39:29,241 --> 00:39:30,242 Standby. 576 00:39:40,544 --> 00:39:42,004 (orca calls over PA) 577 00:39:42,088 --> 00:39:43,297 INGRID (over radio): Can you hear that? 578 00:39:43,756 --> 00:39:45,216 KINA: Loud and clear. 579 00:39:52,264 --> 00:39:55,684 Ingrid, it's really interesting. I- 580 00:39:55,768 --> 00:39:58,521 To be honest, I can't see much difference 581 00:39:58,604 --> 00:40:01,816 in the shark behavior here at all, over. 582 00:40:08,656 --> 00:40:10,783 Not much has changed down here. 583 00:40:14,078 --> 00:40:16,414 INGRID (off-screen): Yeah, well, I guess that doesn't really surprise me 584 00:40:16,497 --> 00:40:18,541 given that these are the fish-eating orca. 585 00:40:18,624 --> 00:40:23,796 NARRATOR: The sharks appear unresponsive to the North American orca calls 586 00:40:23,879 --> 00:40:26,257 but these sounds have never been heard 587 00:40:26,340 --> 00:40:28,217 before in New Zealand. 588 00:40:29,135 --> 00:40:32,179 INGRID: Yeah, Kina, so now I'm gonna play you the New Zealand orca. 589 00:40:33,264 --> 00:40:35,516 These are probably the ones that the great whites have 590 00:40:35,599 --> 00:40:36,892 heard before. 591 00:40:37,643 --> 00:40:38,894 INGRID (off-screen): Stand by. 592 00:40:42,273 --> 00:40:46,110 (orca calls over PA) 593 00:40:51,115 --> 00:40:53,409 (orca calls over PA) 594 00:40:57,663 --> 00:41:01,125 KINA: Just skirted off towards the side of the boat there. 595 00:41:04,962 --> 00:41:07,047 I can't say for sure, but 596 00:41:07,131 --> 00:41:08,799 right now, I can't see 597 00:41:08,883 --> 00:41:10,134 any sharks at all. 598 00:41:11,969 --> 00:41:14,138 NARRATOR: The sharks response was clearly to 599 00:41:14,221 --> 00:41:16,557 move away from the sound. 600 00:41:23,814 --> 00:41:25,691 KINA: That's a huge female! 601 00:41:28,527 --> 00:41:30,863 But she's just not approaching the cage. 602 00:41:33,491 --> 00:41:37,203 Way out across the bottom, I keep seeing these shapes. 603 00:41:37,286 --> 00:41:39,413 Big sharks cruising past. 604 00:41:41,874 --> 00:41:44,835 The sharks are there, but they just don't seem to be interested 605 00:41:44,919 --> 00:41:46,462 in coming anywhere near us. 606 00:41:48,714 --> 00:41:51,342 NARRATOR: Ingrid and Kina observe that the sharks keep 607 00:41:51,425 --> 00:41:54,220 the source of the orca sounds in sight. 608 00:41:55,054 --> 00:41:57,681 But stay well out of the way. 609 00:42:00,684 --> 00:42:03,812 KINA: It is hard to know what's going on, but, um. 610 00:42:05,105 --> 00:42:06,774 Yeah, interesting. 611 00:42:16,283 --> 00:42:18,035 INGRID (off-screen): How was that, mate? 612 00:42:18,118 --> 00:42:21,121 KINA: Yeah, well, another awesome dive down here but interesting. 613 00:42:21,205 --> 00:42:23,916 We've only really had a glimpse, eh? 614 00:42:23,999 --> 00:42:26,961 NARRATOR: The orca sounds changed the behavior of 615 00:42:27,044 --> 00:42:28,546 the white sharks. 616 00:42:28,629 --> 00:42:31,674 From fearlessly coming into the sounds of the humpbacks, 617 00:42:31,757 --> 00:42:35,970 to moving off and keeping their distance when they heard 618 00:42:36,053 --> 00:42:38,389 hunting orca. 619 00:42:40,641 --> 00:42:43,978 But was this a typical animal reaction to danger? 620 00:42:44,061 --> 00:42:46,855 INGRID: You know, when you think about the bite marks 621 00:42:46,939 --> 00:42:48,649 that we saw that could've been the orca, 622 00:42:48,732 --> 00:42:52,361 and you saw the way that the great white sharks, you know, 623 00:42:52,444 --> 00:42:54,780 there was a bit of a reaction there but not full on. 624 00:42:54,863 --> 00:42:58,367 KINA: Obviously, we'd have to do this a lot of times to be able to say for sure. 625 00:42:58,450 --> 00:42:59,660 INGRID: Yeah. 626 00:42:59,743 --> 00:43:02,830 KINA: But maybe actually the sharks aren't so scared of orca. 627 00:43:02,913 --> 00:43:05,040 INGRID: Well, maybe New Zealand sharks are more 628 00:43:05,124 --> 00:43:07,376 exposed to it like even from when they are little sharks, 629 00:43:07,459 --> 00:43:10,713 and so they just become habituated to it. 630 00:43:10,796 --> 00:43:16,010 NARRATOR: When orca killed five white sharks in South Africa in 2017, 631 00:43:16,093 --> 00:43:18,137 many scientists believed it was a 632 00:43:18,220 --> 00:43:20,014 first for the region. 633 00:43:20,097 --> 00:43:23,559 But is it possible that white sharks have been fending off 634 00:43:23,642 --> 00:43:26,437 orca attacks for thousands of years? 635 00:43:26,520 --> 00:43:30,733 And what we see are only the most recent incidents in an 636 00:43:30,816 --> 00:43:33,611 ancient and on-going battle? 637 00:43:34,445 --> 00:43:36,864 INGRID: I guess the big thing for me is, you know, 638 00:43:36,947 --> 00:43:39,033 how far are these orca going? 639 00:43:39,116 --> 00:43:41,869 We've got some evidence that suggests that they are at 640 00:43:41,952 --> 00:43:44,997 least trying to have a nibble on them, but, uh, 641 00:43:45,080 --> 00:43:48,667 you know I'm, I'm curious to know just how far they've taken it. 642 00:43:50,836 --> 00:43:53,839 NARRATOR: So far, there have been no reported serial shark 643 00:43:53,922 --> 00:43:56,008 attacks in New Zealand. 644 00:43:57,176 --> 00:43:59,762 But here on the far side of the world, 645 00:43:59,845 --> 00:44:04,725 the unseen struggle between orca and white shark goes on, 646 00:44:05,059 --> 00:44:07,728 in secret, for now. 647 00:44:07,811 --> 00:44:09,813 Captioned by Cotter Media Group. 56490

Can't find what you're looking for?
Get subtitles in any language from opensubtitles.com, and translate them here.