Shark Gordon's Most Dangerous Moments
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00:00I love sharks so much it hurts. I'll risk underwater explosions,
00:07ultra close shaves and even feeding frenzies to get close to them.
00:15Join me Ian Gordon as I put my life on the line in the name of shark research.
00:30G'day, I'm Ian Gordon. As a shark researcher I've spent the last 20 years of my life working
00:57with the world's most dangerous animals and every encounter is a real adrenaline rush.
01:02As experienced as I am I've learnt there's a surprise around every corner and believe
01:07me I've had a few. Luckily I'm still around to talk about them so sit tight and I'll tell
01:12you about some of my closest calls. My all time favourite shark is the Great White.
01:19It's got eight rows of razor sharp serrated teeth and jaws that can cut a man in half with
01:25one bite. In this first story I'm off the Neptune Islands on the south coast of Australia where
01:33there have recently been two fatal attacks attributed to the Great White. While everybody knows the
01:39Great White's bad boy reputation, we know very little else about them. So for more than
01:44ten years I've been tagging these sharks trying to learn more.
01:51Here he comes. Whoa! She's probably about 2,200 to 2,300 pounds. It's a very big shark.
02:00And he's coming back around again. Here he goes. Come on mate. Where's that number? Oh yes!
02:13Great Whites are the perfect predator. They've existed since long before T-Rex. But we probably
02:18know more about dinosaurs than we do about Great White sharks. Attaching tags allows us to
02:25identify them and track where they go. But tagging them can have its moments.
02:31Coming straight at my bait. Straight at my bait. Here he comes in. Here he comes in.
02:38And it doesn't come much closer. Have a look at that in slow motion. Here he comes in. Here he comes in.
02:48Those sharks come in so fast sometimes you've really got to watch your feet, I'll tell you.
02:59The jaws of a Great White have a deadly reputation. But it takes a high speed camera to show how
03:05beautifully designed they are. When a white shark attacks, it comes in a rush fast enough
03:10to push its one ton body halfway out of the water. And it doesn't simply open its mouth and bite.
03:17At the moment of strike, the jaws actually extend forward for maximum chomp. And what a chomp.
03:24The Great White's bite pressure is believed to exceed 4,000 pounds per square inch.
03:34And that's why we call them the ultimate predator. Over 120 million years of evolution
03:39has created those jaws. The lower jaws act as a holding tool to be able to hold the prey.
03:46Whereas the upper jaw froze out from the gums and acts as a cutting tool. And inside those jaws,
03:53the implement of destruction are these teeth. Big triangular teeth. These are upper jaw teeth,
03:59these ones. Lots of serrations down the sides. Whereas the lower jaw tooth is a little bit narrower.
04:04Still cuts, but it's used mostly as a holding tool. One of the other really amazing things
04:09about these animals is that they shed teeth regularly. So if this shark loses this tooth just here,
04:15in about five to seven days it's got a brand new one. Absolutely unbelievable.
04:22So when my research takes me into the water with them, it pays to have good protection.
04:27From the cold as well as the sharks. Time to have a bit of fun.
04:34Whoa, here we go. This is D8 hanging around right now. Is she coming up? Have a bit of a look.
04:49Hello D8, how are you going? Good old D8. She's a big shark. It's about 18 feet long and she's coming back again.
04:59Coming up to have another look. Whoa, look at that. She can see the bait over this side.
05:07She's going to have another go. Whoa. Now that's a rush. A big shark like that comes up to the cage.
05:21There's a whole other place bouncing the cage backwards and forwards. These animals are the ultimate predator.
05:29Some people would be worried about being in the water of these sharks. But these animals are my life and I love them.
05:36The more time I can spend in the water of these guys, the happier I am.
05:42One of the reasons I love these sharks so much is they're actually warm body.
05:49Unlike other fish, white sharks keep their blood at 5 to 15 degrees warmer than the surrounding water.
05:56Warm blood gives them speed, agility, stamina, but that's not all.
06:01As well as more muscle power, warm blood gives them more brain power.
06:06These guys are pretty smart, so you really have to watch out for them.
06:13These guys make their decisions on whether to strike based on what they see.
06:19As she circles the cage, you can see her looking at me all the time, rolling her eye backwards and forwards.
06:35White sharks don't have eyelids. Instead when they strike, they roll their eyes back in the sockets to protect them from harm.
06:44It's always good fun.
07:06The more I learn about these sharks, the closer I want to get.
07:10But getting in the water without a cage when great whites are around is taking a big risk.
07:16One of my closest calls ever came when I was testing an electronic anti-shark device.
07:21The encounter had a happy ending.
07:24But I couldn't stop thinking about those jaws and what they could do to me.
07:29But things don't always go so well.
07:32I've spent a lot of years working with some of the ocean's biggest and most fearsome sharks.
07:42And every time I spend time with them, I'm humbled.
07:47But it's often the smaller, lesser known species that can create the closest calls.
07:59I'm on Australia's Great Barrier Reef and I'm not alone.
08:04This is a white-tipped reef shark.
08:06They're a pretty common species found around here.
08:09And I've been asked to be involved in a research project with these guys.
08:14Ha!
08:15And as usual, I've got the tricky part of the job.
08:21Hang on, mate. Whoa! Careful!
08:23How close was that?
08:27Sharks like these are incredibly flexible.
08:30And that little encounter nearly cost me a trip to the hospital.
08:35Yep, even the little guys can get you into a heap of trouble.
08:39What we've done is we've attracted the sharks with some bait so we can get nice and close to them.
08:44What we have to do is measure and tag some of these white tips that are hanging around here.
08:49To do that, we have to catch them and restrain them.
08:53And that's where my job comes in.
08:55And it's not going to be easy.
08:57Get out of the way.
08:59So here goes.
09:03We're not just doing this for fun.
09:05Catching these reef sharks is the only way to insert high-tech tracking tags for the research program.
09:11Sounds easy, eh?
09:13Even looks reasonably easy.
09:15Oh, jeez!
09:17You got off.
09:18Hey!
09:19Come here, darling.
09:20Come here.
09:24Oh, you beauty.
09:26Come here, girl.
09:27Settle down.
09:28Settle down.
09:29Wrangling sharks is always a risky business.
09:34You never know when a shark will take you by surprise.
09:37Because most of these sharks can be handled without too many problems, it's easy to forget that the odd one can be particularly feisty.
09:49I've been bitten, but the key's not to panic.
09:59That could encourage the circling whalers into full-on attack.
10:03Oh, that shark.
10:04It's so close to getting it.
10:05See what I did to my wetsuit?
10:06You got bit.
10:07Yeah.
10:08And that is as close as you ever want to get.
10:09I've been bitten, but the key's not to panic.
10:12I've been bitten, but the key's not to panic.
10:13That could encourage the circling whalers into full-on attack.
10:18Oh, that shark.
10:19It's so close to getting it.
10:20See what I did to my wetsuit?
10:21You got bit.
10:22Yeah.
10:23And that is as close as you ever want to get.
10:33But sometimes it's not the sharks that present the greatest danger.
10:37In the southern Philippines, we wanted to be the first to study and film pelagic thresher sharks.
10:43But to do it required some extreme diving.
10:46Including breathing nitrox instead of air.
10:51Using rebreathers for complete silence.
10:54Staying deep for dangerously long periods of time.
10:58And having to deal with one of the most stunning underwater experiences I've ever been subject to.
11:04Local fishermen hunt in these waters using dynamite.
11:08And they aren't too bothered by who else is nearby.
11:16Wow!
11:17I felt that.
11:18When a blast goes off, the shock wave goes right through you.
11:22Wow!
11:23The blast was almost enough to knock me unconscious.
11:28My head feels like a hard drive in my computer has crashed.
11:31It's like I have to reboot my brain.
11:33And that blast was half a mile away.
11:34Any closer and we'd all have been dead.
11:36Luckily I wasn't here when the bomber did this was dropped.
11:38The whole top of this big lump of rock here has been completely blasted off.
11:39This is one of the results of dynamite fishing.
11:43This is one of the results of dynamite fishing.
11:44Dynamite comes down.
11:45Pow!
11:46It's just blown on the top right off.
11:47It's just blown on the top right off.
11:48It's like a hard drive and my computer has crashed.
11:49It's like I have to reboot my brain.
11:50And that blast was half a mile away.
11:51Any closer and we'd all have been dead.
11:54Luckily I wasn't here when the bomber did this was dropped.
11:58The whole top of this big lump of rock here has been completely blasted off.
12:03This is one of the results of dynamite fishing.
12:07Dynamite comes down.
12:09Pow!
12:10It's just blown on the top right off this rock and killed everything all around it.
12:15Dead fish would have floated up to the surface and been collected.
12:19It's such a destructive form of fishing.
12:23This is the result of that last dynamite blast.
12:27Already the percussion has started to damage the marine life.
12:32All these beautiful soft corals are normally extended right out.
12:37But now are starting to droop.
12:39That blast has such an impact.
12:42It's going to kill these guys.
12:44They're all going to die.
12:49Diving with these sharks is one of the toughest assignments I've ever had to endure.
12:54But it's worth facing the dynamite.
12:57Observing the pelagic thresher at close range is a rare privilege.
13:05Around here it isn't the sharks that are dangerous.
13:08I wonder what effect this explosive local method of fishing has on them.
13:13And on what's left of the other marine life at this ocean oasis.
13:17Now, from pelagic threshers to another open ocean species, the mako.
13:26This time there's no question.
13:28This is a very dangerous shark.
13:30Very dangerous indeed.
13:35We're at the Poor Nights Islands, about 12 miles off the northeast coast of New Zealand.
13:40And I'm here to find the fastest shark in the ocean.
13:45Makos can grow to over 14 feet in length and over 1,800 pounds.
13:51They have a reputation for attacking boats.
13:53And cameramen brave enough or stupid enough to get in the water with them.
13:58But I want to test a theory.
14:00And that is that they're also pretty intelligent.
14:02I've got this lovely tuna here.
14:05And what I want to do is try and hand feed it to one of these mako sharks.
14:08Now I reckon that these guys are going to be able to tell where my hand stops and where the fish starts.
14:14Very intelligent animals.
14:15They know what a fish looks like.
14:16But I don't think they've ever seen a human.
14:18So it should be interesting.
14:19So let's try it.
14:20I wouldn't suggest other people try this.
14:22I've been doing this for a while.
14:23And I know what I'm doing, I think.
14:32My experience tells me that makos do favour fish over divers and can tell the difference.
14:43But this little guy seems to prefer neither.
14:46He also needs a lesson in oral hygiene.
14:51Those bite marks explain why he's so cautious.
14:55They probably came from a bigger mako.
14:57And for that reason I need to keep my wits about me.
15:00A bigger shark would make short work of me out here in open ocean.
15:07But this has to be a smart shark.
15:10He's already learned what's good for him and what's not.
15:13Looks like he's figured out that I'm not a threat.
15:16His acceptance of me is quite remarkable.
15:19He even lets me examine his wounds.
15:24What other predator in the wild would let you do that?
15:30I don't know The
15:51Oh, my God.
16:21But just when we're having fun, my little mate's got nervous, and so have I.
16:38When the little blokes scatter, it's a sure sign that something bigger is on its way.
16:43And the odds are that it's bigger than me too.
16:46It's time to get out.
16:51Smaller sharks often take off when larger animals show up, and this time's no exception.
16:58Makos tend to be loners, and they don't appreciate competition for food.
17:02And this one's looking for dinner.
17:04Come on, mate.
17:20Here she comes.
17:25And there's some sharks you just don't hop in the water with first off.
17:36This is a beautiful female mako shark.
17:43She's probably about eight feet long.
17:45She's been around the boat now for about the last half hour, just chewing and biting at everything.
17:49She's just such a beautiful animal.
17:52But just that little bit too aggressive, a little bit too big to go jumping straight in with.
17:57I still can't resist hand-feeding her, though.
18:00Here we go.
18:00Come on.
18:02Here we go.
18:02Here we go.
18:03Here we go.
18:07Makos are warm-bodied sharks, too.
18:09That means that they have more muscle power, bigger brains, and are capable of some pretty nasty moods.
18:17Make no mistake.
18:19A shark this size would easily take my hand off.
18:22I'm certainly glad I heeded the warning signs and got out.
18:27But sometimes, as much as you want to stay out of the water, things don't go quite according to plan.
18:35Tiger sharks are second on the list of most dangerous sharks, right behind the great white.
18:41So when you're working with them, you have to be extremely careful.
18:45But the best laid plans couldn't prepare me for what was going to happen next.
18:52I'm up against a shark that's fighting for its freedom.
18:57And his is determined to win as I am.
19:03Luckily for me, this shark's more interested in escape than getting even.
19:08The interesting thing is that we're catching these sharks just a mile off one of the world's most popular swimming beaches,
19:15Waikiki Beach in Hawaii.
19:17I'm here with Dr. Kim Holland, one of America's leading shark researchers, to help with a tagging program.
19:28We're actually implanting high-tech tracking tags into the sharks.
19:33It's surgery at sea, and the anesthetic doesn't involve a traditional tranquilizer.
19:38Okay, well, Kim, we can get the shark to calm down by putting it upside down like this.
19:43This is a tonic immobility, isn't it?
19:44That's right.
19:45It's just one of these really strange quirks of nature that if you can get these animals upside down like this,
19:51they'll really just pass out.
19:52And we don't know why it is, but it makes life a lot easier for us.
19:58Yeah.
19:58And for the shark.
20:04Okay, so here goes the chat tag into the shark.
20:08That's just going into the abdominal cavity.
20:10Yeah, lots of room in there.
20:12We're going to sew him up and send him on his way.
20:14But not before I get into the water with him again.
20:17And this time it's on purpose.
20:19Okay, tail rope are off.
20:21Yeah, I got him.
20:22Okay.
20:23Swim on the way.
20:26That's a first.
20:28I'm not just doing this for a thrill.
20:30Most sharks have to swim to pass water over their gills in order to breathe.
20:35So until my mate starts swimming, I'm here to give support.
20:39If not, he could sink to the bottom and possibly die.
20:42Okay.
20:44And we're on the way down to release our tiger shark.
20:48Okay, mate.
20:51Come on.
20:54See you later.
20:57That is a six-footer.
20:58But what about a 12-footer?
21:08Shark off the port bow, about 200 metres, Ed.
21:11All right.
21:11Let's go.
21:12Let's go.
21:13Looks like we might be on, mate.
21:18Look at this guy.
21:27Isn't he gorgeous?
21:28Oh, aren't you lovely?
21:30Lovely to look at, but tigers this size have a nasty reputation for attacking humans.
21:36During the 90s, there were 33 attacks attributed to tigers in Hawaii alone.
21:42Two of them fatal.
21:44Getting into the water with this monster is a very dangerous thing to do indeed.
21:49But now he's preoccupied with chasing this waterlogged albatross chick.
21:53I think I'm safe.
22:03It's amazing how cool, calm and collected you can appear on the outside when your stomach's tying itself in knots on the inside.
22:10But keeping calm is the key to surviving an encounter like this.
22:15Relax and show absolutely no fear, even when you know what the animal is capable of.
22:21When a tiger shark decides to eat something, nothing will stop it.
22:26Even a turtle's big, hard shell is no protection against the tiger's wide jaw and scissor-action teeth.
22:36Each tooth is serrated and curves out from the centre of the jaw.
22:41All the shark has to do is shake its head to saw through muscle, bone and shell.
22:47If a tooth is lost, several others wait in line to take its place to restore the tiger's deadly bite.
22:56And remember, compared with a tough-armoured shell of a turtle, I'm like a marshmallow.
23:12Getting into the water with feeding sharks is an extremely risky business, even in shallow water.
23:18And I wouldn't recommend it to anyone.
23:20But this guy over here is concentrating on one thing and one thing only.
23:24And that's eating that bird, so I reckon I'll probably be all right.
23:30Trust me, I know what I'm doing, I think.
23:38The tiger gets its name from the stripes on its back.
23:41The ancient Hawaiians regard these sharks as amakua, ancestors transformed into gods, or protective spirits.
23:50But protective is the last thing they seem up close.
23:53In fact, the shark this size must always be considered a threat.
24:07Luckily, I was right.
24:09He's completely preoccupied with hunting birds.
24:12And tigers aren't the only sharks that will eat any opportunity that comes along.
24:26Tigers may have a fierce reputation, but oceanic whitetips are without a doubt the shark that scares me the most.
24:33And for good reason.
24:36They've been blamed for hundreds of deaths of sailors and downed aviators, especially during World War II.
24:44When you're out of sight of land, these sharks are your worst nightmare.
24:49I've always wanted to dive with them, but it's a risky job that my crew and I are not going to take lightly.
24:57If that sausage goes off or that clinch fist goes up, two people out of the water as fast as possible.
25:03I don't think there's any need for a safety diver to be kitted up with scuba.
25:07But I think as long as there's a pair of fins and a mast canny that we can just grace out and have assistance fit and needed.
25:15But remember that as soon as you introduce another person to the water, you're potentially going to compound the danger.
25:21With these guys, it's an absolute liability.
25:24And you have to be aware of that.
25:26You can't go jumping in like other sharks with these guys.
25:29If these guys are fully rocked up, it's a serious problem.
25:34And if you go introducing another diver, he's not a safety diver, he's a lamb to the slaughter.
25:41With words of wisdom like that, sometimes I begin to question my own sanity.
25:47I'm off Kona in Hawaii to test the latest in shark technology.
25:51I want to see if electronic shark deterrents work on this species.
25:59And what a shark to test it on.
26:02This oceanic white tip is about eight feet long.
26:05Big enough to make a mess of me in a few seconds.
26:08And you can bet it's already crossed his mind.
26:26I don't mind telling you that was a rush.
26:29The jolt hasn't exactly sent him packing.
26:33He's still interested.
26:35All I can do is watch carefully for his next approach.
26:40These sharks are named for the white tips on their fins.
26:43From a distance, the white flashes look like tiny schools of fish.
26:47And they may help to attract some of the shark's prey.
26:50They call this aggressive mimicry.
26:52And I can't think of a better name for it.
26:54This is one of the few sharks known to attack suddenly without reason.
27:01And even more worrying, they're rarely seen alone.
27:04Oh, that's a great animal.
27:15That has got to be one of the meanest looking sharks up close.
27:19They make me so nervous.
27:20They are, without a doubt, the top order predator in the ocean.
27:24Especially, that's only one.
27:25Imagine when you've got two or three around.
27:26I even had to give him a little bit of a vat with the electric on the pole once.
27:32And all that does is create a very small electrical field that doesn't electrocute the shark.
27:38It jams some of the sensory organs around the nose.
27:41And he noticed it straight off.
27:46Which is a good indication that these guys are sensitive to this sort of pod-type technology.
27:51So, uh, that's a really good thing.
27:56What a buzz.
27:57But there's more to come.
28:00The secret to finding oceanic whitetips is finding pilot whales.
28:06The sharks and the whales almost always seem to travel together.
28:14Pilot whales are actually a large species of dolphin.
28:17Now, most people think that if there are dolphins about, you're safe from sharks.
28:24But that's not true at all.
28:27In fact, the opposite is more often the reality.
28:30In this case, they both hunt squid.
28:33But while the sharks rely on their senses of vision and smell,
28:36whales also use echolocation.
28:39It's likely that the sharks shadow the whales
28:42to take advantage of a whale's echolocation sense.
28:45But unlike the pilot whales,
28:52the oceanic whitetips are extremely opportunistic in their feeding.
28:56That means they'll eat pretty much anything, including me.
29:01And they have absolutely no fear.
29:04Once they see you, they will turn
29:06and they'll just keep coming and coming
29:08until they're just inches away.
29:10Do you want to slightly move us up in front, Pat?
29:19Oh, yeah, straight towards us.
29:21Quick, Mike.
29:26We've tried this prototype pod
29:29and I gave the shark a little bit of a shot with it
29:31and it seemed to work quite well.
29:33So now what we're going to do
29:34is we're going to hop in with the production unit
29:36and see how that goes.
29:38Right behind you, mate.
29:39OK.
29:43Let's hope this works.
29:44These guys are real worried sometimes.
29:46I'll tell you.
29:47There's just one little problem.
29:49I can't use my scuba gear.
29:52You risk decompression sickness
29:53if you fly within 24 hours after using scuba.
29:56And our plane's leaving tonight.
29:59That means I have to test the pod while snorkelling.
30:07The burly has excited him
30:09and we know that the pod doesn't always stop sharks
30:11once they're in feeding mode.
30:13But the big unknown is whether any other sharks will show up.
30:17If that happens, the danger will instantly escalate
30:20and the chances are we'll be in big trouble.
30:26That was almost too close.
30:50I was a little bit late switching the pod on that time.
30:53He's definitely interested
30:56but now hopefully there's a line around me
30:59he just won't cross.
31:02Because it generates an electrical field
31:04the pod isn't recommended for anyone with cardiac problems.
31:08Of course, if you're prone to heart attacks
31:11shark diving probably isn't the ideal hobby for you anyway.
31:16But as far as we can tell
31:17it doesn't hurt the shark.
31:20It just overwhelms his electrical senses.
31:22It's probably something like you or I
31:25getting a blast from a car horn.
31:31The pod only works on sharks and rays.
31:34Fish without electrical sensors should feel nothing at all.
31:37And it's certainly not enough to scare this guy off.
31:40I'm glad to see it working on this species.
31:50I really had my doubts.
31:51Touching this amazing shark was one of the biggest buzzes of my life.
32:14I certainly wouldn't suggest that anyone else try this.
32:18And I'm not going to push my luck.
32:20It's time to call it quits.
32:22The electronic shark deterrent certainly works.
32:35If I wasn't wearing it
32:37I'm fairly confident
32:38I wouldn't have made it back to the boat.
32:42Well that was fun.
32:44Well done.
32:45Yeah mate.
32:46There's no question that the old pod works.
32:49The pod unit seems to work quite well on these guys.
32:52Which is good news.
32:53That's really great stuff.
32:55Ah.
32:56If it works on these guys
32:58I can see a lot more high risk divers like me
33:01using the pod in their work.
33:03But the most exciting application for this technology
33:06could be helping those who don't plan on being in the water.
33:10Fitting shark pods in life jackets.
33:12I just love diving with these sharks so much.
33:21They're so much fun.
33:22It's about as good as it gets.
33:24Yeah.
33:25Yeah.
33:25They're evil.
33:26They're evil.
33:27They're evil sharks.
33:28These guys will tell you.
33:29The oceanic white tip has to be one of the most fearless sharks
33:32I've ever dived with.
33:34But at least in the clear waters of Hawaii
33:36I could see them coming.
33:38Diving in freezing cold water
33:48with less than four foot visibility
33:49on the edge of a 6,000 foot canyon
33:52seems scary enough.
33:54But add to that the possibility
33:55of great white sharks in the area
33:57and the huge and dangerous six gill
33:59along with a 2,000 pound monster
34:02that I'm looking for
34:03and wow.
34:04We're out on the edge
34:09of the Monterey Canyon
34:10off the Californian coast
34:12and I'm here to see a very rare fish
34:14the giant prickly shark.
34:17For a few days each year
34:18they come to one spot
34:19and to find out why
34:21we have to catch and tag them.
34:23Easier said than done
34:24when they can weigh more than a car.
34:26Keep pulling.
34:39Check out that shark.
34:40You know he's odd.
34:42Oh mate, this is one heavy shark
34:44I tell you.
34:45He's not odd.
34:47Pull, pull, pull.
34:48Pull, pull.
34:50Researching these sharks
34:51on the surface is hard enough
34:53but I also want to get down
34:55and try to find them
34:56in their own territory
34:57but that's generally so deep
35:00it's out of range of any diver
35:01except for here and now.
35:04For a couple of hours each morning
35:05they come up from the depths
35:07onto the edge of Monterey Canyon
35:09and that's within diving range
35:11just.
35:1395, 99, 101.
35:15I've got to tell you
35:18I'm more than a little nervous
35:19about this dive
35:20but the chance to meet
35:23a prickly shark in the wild
35:25is just too much to resist.
35:33Right beneath me
35:34is a canyon
35:35that drops away
35:366,500 feet
35:38to the seafloor
35:39but the limit
35:40for ordinary diving
35:41is just 130 feet
35:43everything below that
35:45is a mystery.
35:51Here we are
35:52in our depth limit
35:53and I can't even
35:54see my own fins.
35:56I've got a feeling
35:57there are pricklies
35:58very close to me
35:59but the problem
36:00is going to be
36:00to find them
36:01in this murk.
36:07I'm running out of time
36:09if I stay down
36:10much longer
36:11my blood will absorb
36:12a critical amount
36:13of nitrogen gas
36:14from the air
36:14I'm breathing.
36:18As the pressure
36:19decreases on my way up
36:20that gas will form
36:21bubbles in my blood.
36:23That's the bends.
36:24It's not only
36:25extremely painful
36:26it can also be lethal
36:28and that's not
36:29in my contract.
36:30the visibility here
36:39is about as bad
36:54as it gets.
36:56Finding a prickly
36:57is going to be
36:57quite a challenge
36:58in fact
36:59they're just as likely
37:00as to bump into us
37:01as us into them.
37:03It's cold
37:04dark
37:05and claustrophobic
37:06it really makes you
37:08feel uneasy
37:09especially when you're
37:10talking about bumping
37:11into a thousand pound shark
37:13and there may be
37:15the odd six kill
37:16or great white also
37:17you've really got to
37:19keep your eyes open
37:20although seeing anything
37:22in this murk
37:22would be quite a challenge.
37:24This is the spot
37:32the canyon wall
37:34drops right away
37:35next to me
37:35but the water's
37:37even murkier
37:38than before.
37:38I've got to keep
37:59moving and cover
38:00as much ground
38:01as I can
38:02I've only got
38:03ten minutes
38:04at this depth
38:05then I have to go
38:06back to the surface
38:07wow
38:14there it is
38:16the demon
38:17from the deep
38:18this one's a
38:20ten foot female
38:21isn't she beautiful
38:22I can't believe it
38:24check out
38:25this little bite
38:26on her side
38:27that's from
38:28another deep water
38:29species
38:29a tiny cookie cutter
38:31shark
38:31amazing
38:33look here's another
38:36one
38:36see how slowly
38:37she's moving
38:38it's using ground
38:39effect water pressure
38:40to ride on
38:41as she glides
38:42over the seafloor
38:43what a sight
38:44sharks like these
38:46are very tolerant
38:47of pressure changes
38:49because they lack
38:50the swim bladders
38:51and other gas spaces
38:52that can expand
38:53and cause problems
38:54for other fish
38:55and divers like me
38:56so she's perfectly
38:58at home in
38:59thirty feet
39:00or thirteen hundred feet
39:01we know very little
39:05about these sharks
39:06they've only been seen
39:07eating small fish
39:09but she has a huge mouth
39:10that's more than capable
39:12of inflicting
39:12a deadly bite
39:13and they also swim
39:15with the dangerous
39:16sixgill sharks
39:17this shark is about
39:18twelve feet long
39:19and probably weighs
39:21around two thousand pounds
39:22time goes so fast
39:51I can't believe it
39:52I'm already down
39:53to my last two minutes
39:54of bottom time
39:55one last look
39:57and then I'm afraid
39:58it's back to the surface
39:59wow there's another one
40:13and it's another female
40:14this one's smaller
40:16than the others
40:16about eight feet in length
40:18but still big enough
40:19to do some damage
40:20if she wanted
40:21I just can't believe it
40:23look at her
40:24I wonder if she'll
40:28let me touch her
40:29I'm fairly sure
40:31I'll be safe
40:32wow see that
40:36when I touched her
40:37she was off
40:38unbelievable
40:39imagine getting a chance
40:41to dive with a prickly shark
40:43in these conditions
40:44I just can't believe it
40:46I've got to tell you
40:47this is almost like
40:49a religious experience
40:50well persistence pays off
40:56and even in terrible
40:59conditions like this
41:00one or two foot
41:02visibility
41:03if you keep working
41:05you'll eventually succeed
41:07fantastic animals
41:10and all you see
41:13is that big eye
41:14first thing you see
41:15is the big eye
41:15or the back of the tail
41:17as far as I know
41:19this kind of footage
41:20is a world first
41:21diving with these
41:23huge animals
41:24is one of the highlights
41:25of my life
41:26and a real journey
41:27into the dark
41:28I still can't get over
41:30the feeling of meeting
41:31pricklies in their own
41:32environment
41:33it'll take days
41:35for the adrenaline
41:35to wear off
41:36after a couple of decades
41:44of doing this sort of stuff
41:45there's one thing
41:46that I know for sure
41:47even in crystal clear water
41:49never ever turn your back
41:51on a shark
41:52it's the one you don't see
41:53that'll get you
41:54and there's nowhere
41:57that's better to prove that
41:59than here in the Bahamas
42:00this is Walker's Cay
42:01Shark Rodeo
42:02one of the best shark dives
42:04in the world
42:05there are maybe
42:0660 to 80 Caribbean
42:08and black tip reef sharks
42:09circling and feeding
42:10wow how close was that
42:14that Caribbean reef targeted me
42:17from right up at the top
42:19of this pack
42:19of feeding sharks
42:20that's the trouble
42:23when there's a lot
42:23of sharks around
42:24but generally
42:25these guys won't bite
42:27unless you harass them
42:28check this out
42:29part of a chum
42:30has broken away
42:31and has been carried around
42:32by the feeding sharks
42:34cameraman Mike
42:36is right in the middle
42:37you'd think
42:38there'd be trouble
42:39but he remains calm
42:40and even when mouthed
42:42he doesn't react
42:42keep the camera going Mike
42:44keep that camera going
42:45it may look like a frenzy
42:50but the sharks
42:51are only biting the food
42:52as long as you don't panic
42:55and remain calm
42:56you can even walk away
42:57from situations like this
42:59if you see a shark
43:01and turn and run
43:02the shark will either
43:03sense your fear
43:04and give chase
43:05or maybe he'll think
43:06that you've got food
43:07and also give chase
43:09so rule number one
43:10never run from a shark
43:12back away in a slow
43:14and controlled manner
43:15but always keep your eyes
43:17on the animal
43:17that's a good theory
43:20with sharks like these
43:21six to eight foot
43:22Caribbean and black tips
43:23but what about
43:27public enemy number three
43:28the bull shark
43:30while it's third
43:31on the list
43:31of the most dangerous sharks
43:33when it comes to fatalities
43:34the bull kills
43:36more of its human victims
43:37than any other shark
43:38there are lots of people
43:41who believe that
43:42most shark attacks
43:43are a case of mistaken
43:44identity
43:45but my friend
43:46Dr. Eric Ritter doesn't
43:48he thinks that sharks
43:49are far too intelligent
43:51to make silly mistakes
43:52like that
43:52and he's brought me here
43:54to the Bahamas
43:55to help prove it
43:56we're going to
43:57wade out to our waists
43:59and place fish heads
44:00food scraps
44:01and blood in the water
44:02around our legs
44:03Eric says the sharks
44:05will be able to tell
44:06the difference
44:06between our legs
44:08and feet
44:08and the food
44:09it's a test for the sharks
44:11and a big test
44:12of our nerve
44:13Eric's also keen
44:17to reinforce
44:17what we've learned
44:18before
44:19staying calm
44:20has a lot to do
44:21with being safe
44:22so tell me
44:24why have you got
44:24a heart rate monitor
44:25on me
44:26and I notice you've got
44:27one as well
44:27yeah
44:27you see
44:28heart rate are a good indicator
44:29if you get nervous
44:30if you're relaxed
44:31you know
44:32and it's much easier
44:33to work with these
44:34big sharks
44:35you know
44:35to see where your heart is
44:37or your stage of nervousness
44:38because anything's going to
44:39raise someone's heart rate
44:40like a
44:41like a nine foot bull shark
44:43in knee deep water
44:44look at this guy
44:45I mean
44:46yeah
44:46oh yeah
44:46just to make things worse
44:50I can't help
44:51trying a hand feed
44:52please don't ever
44:55attempt to do this
44:56it's extremely dangerous
45:00but it helps
45:01to illustrate the point
45:03that Eric's trying to make
45:04sharks have a far
45:05greater ability
45:06to discriminate
45:07than we've ever
45:08given them credit for
45:09but the real test
45:16is still to come
45:17I took my hand
45:18out of the way
45:19before the bite
45:19what if we don't move
45:22while the sharks
45:22take food
45:23from on and around
45:24our feet
45:25and the question
45:28I've got to ask you Eric
45:29is
45:29how can we do this
45:30well you know
45:31you don't have
45:32to be afraid
45:33of these animals
45:34they're not dangerous
45:34as long as you
45:35follow certain
45:36certain rules
45:37certain rules
45:37yeah
45:38you've got to play the game
45:39exactly
45:40yeah
45:40exactly
45:41and that's what
45:41we can see here
45:42you know
45:42we're here
45:43the sharks are there
45:44you know
45:45they're very hesitant
45:45so our job now
45:46is to stay
45:47calm
45:48quiet
45:49you know
45:49and don't give them
45:50any ideas
45:51that we may be
45:52a potential threat
45:52yeah
45:53look at the size
45:54of that thing
45:5583
46:0267
46:05you've got three
46:07boat acting
46:07that was superb
46:18superb
46:19oh my god
46:21wasn't that great
46:23how's your heart
46:25right now
46:2674
46:27I got knocked over
46:33I got knocked over
46:38still here
46:40now this is what I call
46:52amazing
46:52we've got five or six
46:55three metre
46:56nine ten foot long
46:58bull sharks
46:59right behind us
47:00that actually hit
47:01Eric and I
47:01in our legs
47:02and moved us backwards
47:03our entire body weight
47:04what do you reckon
47:06what do you reckon
47:06about that
47:06I don't know
47:07that's great
47:09there's no question
47:16that the sharks
47:17know exactly
47:18what they're doing
47:19but we aren't finished yet
47:20now it's time
47:22to go swimming
47:22with them
47:23Eric wants to illustrate
47:25how rising heart rates
47:26and running away
47:27can dramatically
47:28change the sharks
47:29attitude to us
47:30this could explain
47:32why sharks
47:32often chase
47:33snorkelers
47:34and people
47:34who panic
47:35unfortunately
47:38in many of the
47:39shark attacks
47:39that happen
47:40we fail to see
47:41the shark
47:42and without knowing
47:43it
47:43we do something
47:44to incite the attack
47:45of course
47:46there are some
47:47sharks
47:48that are just
47:48plain hungry enough
47:49to attack us
47:50for a meal
47:50but Eric believes
47:52true attacks
47:53like this
47:53are a lot rarer
47:54than we think
47:55and his research
47:56is proving it
47:57this experiment
47:59is about as dangerous
48:01as I'm prepared
48:02to attempt
48:02as we hold our breath
48:04our pulse rates
48:05begin to go up
48:06you can see
48:07the circling sharks
48:08coming in closer
48:09but not a lot
48:11just heart rates rising
48:13doesn't seem
48:13to really bring them in
48:15now we try that again
48:28this time
48:29there are eight sharks
48:30all around us
48:31and our pulse rates
48:32are both up
48:33over a hundred
48:34from the last dive
48:35this
48:37combined with
48:37us swimming
48:38backwards and forwards
48:39seems to have
48:40them more
48:41interesting
48:41they're all over us
48:52but as long
48:53as we remain cool
48:54they don't attack
48:55I can't believe it
48:57I'm still alive
48:59and I had Eric's
49:00understanding of these
49:01sharks to thank for it
49:02they clearly need
49:03another stimulus
49:04to bite us
49:05we can add this
49:11stimulus
49:11just by changing
49:13our behaviour
49:13look what happens
49:19when we swim
49:20off a little faster
49:21they're right behind us
49:25they're just waiting
49:26for a sign
49:27that we're either
49:28injured or a threat
49:29if we panic now
49:31and thrash and splash
49:33our way back
49:33to the beach
49:34anything could happen
49:35did you see that
49:38oh it was solid
49:39this thing
49:40was on my head
49:41you know
49:41so I'm coming
49:42close to giant
49:43then get a good
49:45hat scratch
49:45amazing
49:46well kitties
49:47don't do that
49:49at home
49:49okay
49:50and that's good
49:54advice
49:54while we're starting
49:55to see the patterns
49:56of their behaviour
49:57sharks are anything
49:59but predictable
50:00and perhaps
50:01that's why I just
50:02can't get enough
50:03of them
50:04well that's about
50:14all the adrenaline
50:15I can deliver
50:16this time
50:16how can you top
50:17that you're wondering
50:18well there's about
50:19450 different species
50:21of sharks
50:22and I've only dived
50:23with about five dozen
50:24of them
50:25I'll keep you posted
50:26so many sharks
50:30so little time
50:32and I'll see you
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