0:00:03 > 0:00:04My name's Steve Backshall.
0:00:06 > 0:00:09And this is Deadly Pole To Pole.
0:00:09 > 0:00:11Ohhh!
0:00:11 > 0:00:14From the top of the world to the bottom.
0:00:14 > 0:00:15Whoa! Ha-ha!
0:00:15 > 0:00:19Deadly places, deadly adventures,
0:00:19 > 0:00:20and deadly animals.
0:00:21 > 0:00:25And you're coming with me every step of the way!
0:00:26 > 0:00:27Arghhhh!
0:00:30 > 0:00:34This is Hawaii, an isolated island chain, battered by Pacific waves
0:00:34 > 0:00:38where even the land and the sea itself seem to be deadly!
0:00:42 > 0:00:44Argh! No!
0:00:45 > 0:00:47Oh, where did my sunglasses go?!
0:00:48 > 0:00:52Hawaii is the most remote group of islands on Earth,
0:00:52 > 0:00:55lost in the middle of the Pacific Ocean.
0:01:00 > 0:01:03'And that ocean is alive with aquatic assassins.'
0:01:08 > 0:01:11'We brave the waves to find a lone shark...
0:01:14 > 0:01:19'..and scour the forest for a surprisingly swift ambush killer...'
0:01:19 > 0:01:20Yes!
0:01:21 > 0:01:22Oh, wow!
0:01:22 > 0:01:26'..before assessing the bite of a multi-jawed moray eel.'
0:01:26 > 0:01:30It's pulling me right in to the coral! Arghhh!
0:01:34 > 0:01:37'Over all my years of shark searching,
0:01:37 > 0:01:39'one species has managed to elude me.
0:01:39 > 0:01:43'A true open-sea wanderer, the oceanic white tip.
0:01:44 > 0:01:46'Sharks are very rarely dangerous to humans,
0:01:46 > 0:01:50'but the oceanic white tip is a confirmed man-eater
0:01:50 > 0:01:53'and often the first on the scene of sinking ships.'
0:02:01 > 0:02:05The oceanic white tip is a deep-sea shark.
0:02:05 > 0:02:10It's what's known as a pelagic fish, one that sticks to the open ocean.
0:02:10 > 0:02:14They're mostly solitary, so incredibly difficult to find.
0:02:14 > 0:02:17'Over the next three days, we'll be all at sea,
0:02:17 > 0:02:21'in the hope of a run-in with a remarkable rarity.
0:02:21 > 0:02:25'But Hawaii has some of the biggest waves on Earth.
0:02:25 > 0:02:29'So, it's sunscreen and sea-sickness tablets all round.
0:02:29 > 0:02:31'And even if the weather and waves don't drown us,
0:02:31 > 0:02:34'it'll be near impossible.'
0:02:34 > 0:02:36It's a very, very big ocean.
0:02:36 > 0:02:39Well, the Pacific's the largest ocean in the world,
0:02:39 > 0:02:43and we're looking for one, just one, solitary shark.
0:02:45 > 0:02:47This is going to be so hard.
0:02:47 > 0:02:51'Their lifestyle and home doesn't just make them hard to find,
0:02:51 > 0:02:53'it also makes them potentially dangerous.'
0:02:55 > 0:02:58Over the years, I've dived with all different kinds of sharks
0:02:58 > 0:03:01that are considered to be dangerous to human beings,
0:03:01 > 0:03:04and I really believe that they are totally misunderstood.
0:03:04 > 0:03:07Oceanic white tip sharks are a little bit different.
0:03:07 > 0:03:10This is a shark that lives in the open ocean where there
0:03:10 > 0:03:12isn't an enormous amount of food. They have to test out
0:03:12 > 0:03:15every single thing that they see as a potential meal
0:03:15 > 0:03:17to find out if it's good to eat.
0:03:21 > 0:03:25'To find a shark, weirdly, first you have to find other predators.
0:03:26 > 0:03:28'Like these pilot whales.'
0:03:30 > 0:03:32Yes. Excellent stuff.
0:03:34 > 0:03:37This is a really good size pod of pilot whales.
0:03:37 > 0:03:40They're moving this direction and, if there is a shark,
0:03:40 > 0:03:43it'll be behind them, tailing them over in that direction.
0:03:43 > 0:03:46It'll be just hanging out, waiting for scraps,
0:03:46 > 0:03:49possibly even waiting for pilot whale poo.
0:03:49 > 0:03:51- Steve, go!- Yeah, OK.
0:04:00 > 0:04:03Pilot whales have a crazy method of catching their food.
0:04:04 > 0:04:09Sprinting down to a kilometre depth on a single breath
0:04:09 > 0:04:10to catch large squid.
0:04:12 > 0:04:15Oceanic white tip sharks often tail pods of pilot whales,
0:04:15 > 0:04:19hoping to pick up bits of squid the whales leave behind.
0:04:19 > 0:04:22Diving in with the pilots is our best chance.
0:04:26 > 0:04:29So we got our first glimpse of pilot whales.
0:04:29 > 0:04:32They are absolutely gunning it, they're moving at tremendous speed.
0:04:32 > 0:04:34We didn't see any sharks following them.
0:04:34 > 0:04:38It's possible they're just moving too fast for the sharks.
0:04:38 > 0:04:42'We can't keep up, and there are no sharks lurking behind.
0:04:43 > 0:04:48'But my Deadly crew are a stubborn bunch. We'll be back tomorrow.'
0:04:53 > 0:04:56We're just heading out of the harbour on day two
0:04:56 > 0:04:57but it's still pretty lumpy.
0:04:57 > 0:05:01I think we're in for a big, bumpy, heavy day.
0:05:03 > 0:05:07'So, tactic number two is to dive in on a school of fish,
0:05:07 > 0:05:09'hoping to find the sharks hunting.
0:05:11 > 0:05:12'But how do we find one?'
0:05:14 > 0:05:17We're coming up on a buoy floating on the surface of the sea.
0:05:17 > 0:05:20In the open sea, there is so little shelter
0:05:20 > 0:05:24that even something as small as this becomes a haven for small fish.
0:05:24 > 0:05:26They'll be attracted from miles and miles around,
0:05:26 > 0:05:28and just sit underneath it,
0:05:28 > 0:05:31so large predators like the oceanic white tip take advantage of that
0:05:31 > 0:05:34and quite often things like this buoy could be the perfect place
0:05:34 > 0:05:36to find one.
0:05:50 > 0:05:54'A short swim away and the ocean seems empty.
0:05:56 > 0:06:00'But here in the shadow of the buoy there are thousands of fish,
0:06:00 > 0:06:02'like these oceanic trigger fish.
0:06:04 > 0:06:08'No wonder the white tips seek out shelters like this.
0:06:09 > 0:06:11'Sadly, just not this one.
0:06:13 > 0:06:16'But there's another, more shocking reason that these sharks
0:06:16 > 0:06:18'are so hard to find.'
0:06:21 > 0:06:24So, sharks all over the world are in trouble
0:06:24 > 0:06:29but oceanic white tips are probably the species that's most vulnerable.
0:06:29 > 0:06:32In this part of the ocean, as much as 70% of their numbers
0:06:32 > 0:06:36have disappeared due entirely to human fishing and hunting.
0:06:36 > 0:06:41So much sea to search, so few sharks,
0:06:41 > 0:06:45and with weather like this and waves and wind,
0:06:45 > 0:06:47really our chances are very, very slim.
0:06:50 > 0:06:53'They're solitary, they live in the biggest habitat on Earth
0:06:53 > 0:06:57'and they're critically endangered, facing extinction.
0:06:57 > 0:06:59'Maybe this was a challenge too far.'
0:07:05 > 0:07:08It's our final day and we've got our weather window.
0:07:08 > 0:07:11The sea is much flatter, much more calm.
0:07:11 > 0:07:13I think everyone's feeling very optimistic.
0:07:13 > 0:07:16We're going to carry on going until either the sun goes down
0:07:16 > 0:07:18or the boat runs out of fuel.
0:07:18 > 0:07:21We are not giving up until we absolutely have to.
0:07:21 > 0:07:23Fingers crossed!
0:07:27 > 0:07:29Pilot whales, we have a pod of pilot whales.
0:07:29 > 0:07:31'One last chance.
0:07:31 > 0:07:34'Could they be being followed by a scavenging shark?'
0:07:35 > 0:07:41We have what looks like a really good size pod of pilot whales
0:07:41 > 0:07:44and they're big and moving slowly.
0:07:44 > 0:07:47This is just the perfect opportunity for us.
0:07:47 > 0:07:51There is a very good chance that this group could be being tailed
0:07:51 > 0:07:52by our target animal.
0:07:55 > 0:07:56Wow.
0:07:56 > 0:07:59They're just cruising.
0:07:59 > 0:08:02We do have to be very cautious.
0:08:02 > 0:08:04If there are oceanic white tips here
0:08:04 > 0:08:07then it is one of the only species of shark
0:08:07 > 0:08:09that can be genuinely dangerous to human beings
0:08:09 > 0:08:12and that's all down to their lifestyle.
0:08:12 > 0:08:15This is a shark that lives in the open sea,
0:08:15 > 0:08:17it's a place where there isn't much food available,
0:08:17 > 0:08:21so the white tip has to take every chance that comes its way.
0:08:21 > 0:08:22- CREW: Let's go.- Yeah, OK.
0:08:31 > 0:08:35'Nothing. And the last day's near done.
0:08:35 > 0:08:37'We've failed.'
0:08:37 > 0:08:42'But then suddenly, Simon the sound recordist sees something.'
0:08:42 > 0:08:45Side, round the other side! On the other side!
0:08:45 > 0:08:46Shark on the other side.
0:08:46 > 0:08:49Well, I've spotted a shark, I think, but...
0:08:49 > 0:08:52'It's a dark silhouette that isn't a pilot whale.
0:08:53 > 0:08:56'Could it be our pelagic powerhouse?'
0:09:05 > 0:09:07We have a shark!
0:09:07 > 0:09:09Our first oceanic white tip!
0:09:12 > 0:09:16'The crew are buzzing but we need to keep our cool.
0:09:16 > 0:09:18'This is one of the only animals on Earth
0:09:18 > 0:09:21'that would eat a person given a chance.
0:09:24 > 0:09:28'The huge white-tipped pectoral fins are like wings,
0:09:28 > 0:09:30'helping it fly through the water.'
0:09:34 > 0:09:36Two! There's two of them!
0:09:39 > 0:09:42'The pilot whales are long gone.
0:09:42 > 0:09:46'They're now hanging around to see if we could be food.
0:09:48 > 0:09:51'Oceanic white tips are considered to be one of the top five
0:09:51 > 0:09:53'most dangerous sharks in the world.
0:09:53 > 0:09:57'These sharks are cousins of the great white shark.
0:09:57 > 0:10:00'In fact, they used to be known as the lesser white shark.
0:10:00 > 0:10:03'They're smaller but much more inquisitive.
0:10:07 > 0:10:12'We can't afford to take our eyes off them for even a second.'
0:10:16 > 0:10:19You need to have eyes in the back of your head to do this!
0:10:23 > 0:10:26'In the open ocean, food is scarce.
0:10:26 > 0:10:29'These sharks may have to fast for many weeks.
0:10:32 > 0:10:35'So whenever they find something that might be edible...
0:10:37 > 0:10:40'..they're hard-wired to give it a try.'
0:10:43 > 0:10:45She seems really interested in the cameras
0:10:45 > 0:10:48and she's just testing them out, seeing if they might be good to eat.
0:10:48 > 0:10:52If they want to test something, feel what it's like, they have to do it
0:10:52 > 0:10:55with their teeth and with their snout.
0:10:55 > 0:10:58'Sharks can also sense tiny electrical fields.
0:10:58 > 0:11:01'I'm sure they're picking up signals from the cameras.
0:11:02 > 0:11:06'They use this sense to detect the moving muscles of their prey,
0:11:06 > 0:11:09'and that could be fish, turtles, even seabirds.
0:11:19 > 0:11:23'The shark has taken time out of hunting to check us out,
0:11:23 > 0:11:26'so I want to make sure it doesn't leave hungry.
0:11:26 > 0:11:30'And those are some of the sharpest, serrated teeth
0:11:30 > 0:11:33'in any shark's mighty mouth.
0:11:39 > 0:11:41'Once all the crew are safe back on deck,
0:11:41 > 0:11:46'only then will we relax enough to realise quite how special that was.'
0:11:49 > 0:11:51This has been an absolutely extraordinary experience.
0:11:51 > 0:11:54We really had to work for it.
0:11:54 > 0:11:58This critically endangered, unbelievably beautiful animal
0:11:58 > 0:12:02of the deep open sea is, without doubt, deadly.
0:12:04 > 0:12:07With their sheer size, up to 4m in length,
0:12:07 > 0:12:10inquisitive nature...
0:12:12 > 0:12:14..and flesh-tearing bite..
0:12:17 > 0:12:20..oceanic white tips are a true triumph.
0:12:28 > 0:12:30It'd be very tempting for me to spend
0:12:30 > 0:12:32all of my time in Hawaii out at sea
0:12:32 > 0:12:36but there's one extraordinary inland predator that's so unique,
0:12:36 > 0:12:37I simply couldn't miss it.
0:12:40 > 0:12:43'After big waves and sharks,
0:12:43 > 0:12:46'Hawaii's damp forests might look a little bit tame.'
0:12:47 > 0:12:51But don't be fooled. There is a hidden killer lurking here.
0:12:51 > 0:12:54But it's so fast and so good at not being seen,
0:12:54 > 0:12:57that I probably won't even be able to see it with my naked eye,
0:12:57 > 0:13:01and instead I'm going to need a little bit of Deadly technology.
0:13:03 > 0:13:06'It's cryptic, camouflaged.
0:13:06 > 0:13:09'I could be staring at one right now and not know it.'
0:13:11 > 0:13:13I could be here for a while.
0:13:13 > 0:13:15Right, come on, Backshall.
0:13:15 > 0:13:18'I didn't think it would be this hard!
0:13:18 > 0:13:20'There must be hundreds of them here.'
0:13:25 > 0:13:27Every single place you look
0:13:27 > 0:13:30starts to turn into what you're searching for.
0:13:30 > 0:13:34'It completely messes with your mind.'
0:13:39 > 0:13:40Yes!
0:13:42 > 0:13:43Got one.
0:13:45 > 0:13:46It's so brilliant.
0:13:46 > 0:13:51Honestly, I could've been staring at this plant for ages and not seen it.
0:13:51 > 0:13:54OK, now, I don't know if you'll be able to see this with the camera,
0:13:54 > 0:13:59but lying along the edge of this leaf here,
0:13:59 > 0:14:03lying perfectly flush with it and exactly the same colour
0:14:03 > 0:14:05is a caterpillar.
0:14:05 > 0:14:09And, believe it or not, this is what I'm considering as our next
0:14:09 > 0:14:10Deadly contender.
0:14:10 > 0:14:14But our normal camera I don't really think's going to cut it.
0:14:14 > 0:14:18I think we're going to have to switch...to super-cam.
0:14:18 > 0:14:22'Super-cam magnifies and slows action down.
0:14:22 > 0:14:26'Without it, the split-second strike would be as good as invisible.
0:14:28 > 0:14:31'This is the first caterpillar I've ever suggested
0:14:31 > 0:14:33'could be deadly.
0:14:34 > 0:14:38'Caterpillars are the young, larval stage of moths and butterflies,
0:14:38 > 0:14:40'and feed on plants.
0:14:40 > 0:14:43'Well, except this one.
0:14:43 > 0:14:48'This is Eupithecia, and it's a spring-loaded meat-eater.
0:14:49 > 0:14:53'It may be that because Hawaii is so isolated
0:14:53 > 0:14:57'with so few ants and wasps, that this caterpillar has evolved
0:14:57 > 0:15:01'to take their predatory place, evolved a taste for blood.'
0:15:06 > 0:15:09'They don't eat plants at all - just insects -
0:15:09 > 0:15:13'and that's what we want to try and film.'
0:15:13 > 0:15:17Now, the way it catches its prey is very, very special indeed.
0:15:17 > 0:15:21We could wait here for hours just hoping that a tiny little cricket
0:15:21 > 0:15:23or something comes past. It's probably not going to happen,
0:15:23 > 0:15:26so instead I've got this.
0:15:26 > 0:15:31It's a little stick with an eyelash glued to the end of it.
0:15:31 > 0:15:35And what I'm going to try and do is trigger the predatory response
0:15:35 > 0:15:38of this caterpillar by just tickling it with this.
0:15:38 > 0:15:42Hopefully, it will think that an item of prey has stumbled close by,
0:15:42 > 0:15:46and strike out at it, and when that happens I have to press record here
0:15:46 > 0:15:50and we should see the whole thing slowed down.
0:16:00 > 0:16:03Wham! That was instantaneous.
0:16:05 > 0:16:10'The camera can play the moment back eight times slower than real life.
0:16:13 > 0:16:17'Step two is to see this mini-beast catching real food.'
0:16:26 > 0:16:30Oh! It struck but it missed it.
0:16:30 > 0:16:32STEVE LAUGHS
0:16:34 > 0:16:36Next try.
0:16:36 > 0:16:38Tiny little grasshopper.
0:16:49 > 0:16:54Yes! That is just fabulous!
0:16:58 > 0:16:59Ah!
0:17:04 > 0:17:06Ohhhh!
0:17:07 > 0:17:12- It's brutal.- That is so quick. - Yeah. It's like murder in miniature.
0:17:18 > 0:17:21'These carnivorous caterpillars' strikes are triggered
0:17:21 > 0:17:25'when their unsuspecting prey wander too close to their tail end.
0:17:26 > 0:17:29'Their pincer-sharp legs raise into the air,
0:17:29 > 0:17:32'forming a stabbing basket which envelops the bug
0:17:32 > 0:17:34'in a deadly embrace.
0:17:37 > 0:17:41'It's blisteringly quick, all over in a tenth of a second,
0:17:41 > 0:17:43'faster than the blink of an eye.'
0:17:53 > 0:17:58Well, I have to say it may be tiny, it may be almost invisible
0:17:58 > 0:18:02but this carnivorous caterpillar is utterly unique,
0:18:02 > 0:18:05and, without a doubt, deadly.
0:18:06 > 0:18:08As good as invisible...
0:18:10 > 0:18:12..spring-loaded speedy strike.
0:18:14 > 0:18:16Hawaii's most unlikely predator.
0:18:18 > 0:18:21Carnivorous caterpillars that munch other insects.
0:18:32 > 0:18:34'In Hawaii, you're never far from the sea
0:18:34 > 0:18:37'and never far from marine monsters.
0:18:37 > 0:18:41'Up next, it's part-snake, part-fish,
0:18:41 > 0:18:44'part-alien space demon.'
0:18:44 > 0:18:48It has a face full of the most ridiculously sharp, pointed teeth,
0:18:48 > 0:18:51and many divers are actually quite frightened of them.
0:18:51 > 0:18:54What we really want to do, though, is to introduce some food
0:18:54 > 0:18:56to draw them out into the open, because we're here
0:18:56 > 0:18:58to try and see them bite.
0:18:58 > 0:19:02So, the final checks are done. We're about ready to get in.
0:19:02 > 0:19:06And we're now going to go in search of an elusive, reclusive hunter.
0:19:06 > 0:19:08The sinister-looking moray eel.
0:19:09 > 0:19:11'Morays are fish,
0:19:11 > 0:19:15'but their elongated bodies are covered in mucus, not scales.
0:19:15 > 0:19:19'It allows them to squeeze into tiny gaps in the reef by day,
0:19:19 > 0:19:23'their pointy teeth an ambush trap for passing fish or squid.'
0:19:42 > 0:19:45Look at that! Butterfly fish.
0:19:50 > 0:19:53'There are thousands of colourful species on these reefs,
0:19:53 > 0:19:57'and many of them could end up being munched by morays.'
0:20:05 > 0:20:07Oh, wow.
0:20:08 > 0:20:11Oh! That's beautiful!
0:20:15 > 0:20:18We have an undulated moray,
0:20:18 > 0:20:22which is known for the undulating pattern that runs down its body,
0:20:22 > 0:20:23that's this one here.
0:20:27 > 0:20:29I've got a little bit of squid on a stick.
0:20:31 > 0:20:34Let's see the moray in action.
0:20:35 > 0:20:37Oi!
0:20:38 > 0:20:41Go away! That's not for you.
0:20:49 > 0:20:51Oh, wow! That was quick.
0:20:55 > 0:20:57It's almost like a dog, really.
0:20:57 > 0:21:02Its whole world is driven by lovely, enticing smells.
0:21:05 > 0:21:09Although it has got reasonable eyesight,
0:21:09 > 0:21:15it's sensing where its prey is using two sets of nostrils,
0:21:15 > 0:21:19one at the front of the snout, one behind them,
0:21:19 > 0:21:21just in front of the eyes.
0:21:23 > 0:21:27Oh... Whoa! That's very, very strong.
0:21:31 > 0:21:33They're such an intimidating sight.
0:21:36 > 0:21:40And they do actually have quite a bite,
0:21:40 > 0:21:42so I don't really want to get nibbled!
0:21:47 > 0:21:50A beautiful, beautiful creature.
0:21:51 > 0:21:54And for its size, it has a formidable bite force.
0:21:55 > 0:22:00What I'd really like to do next is to test quite how hard
0:22:00 > 0:22:02the moray can bite.
0:22:02 > 0:22:05'Which calls for a special pressure gauge
0:22:05 > 0:22:07'designed to measure bite force.
0:22:07 > 0:22:09'We've used them before...'
0:22:11 > 0:22:12Ohh!
0:22:14 > 0:22:17'..and got some spectacular results.' Whoa!
0:22:19 > 0:22:22'So how is the moray eel going to match up?'
0:22:22 > 0:22:27What happens is, the animal bites down on this section here
0:22:27 > 0:22:31and then on this gauge, we'll register quite how powerful
0:22:31 > 0:22:33their bite force is.
0:22:33 > 0:22:37So, let me just try with my own bite and see what it registers.
0:22:37 > 0:22:42'My bite force registers a mere 40lb per square inch.
0:22:43 > 0:22:46'We need to get a moray to give it a nibble.'
0:22:46 > 0:22:48What could possibly go wrong(?)
0:22:55 > 0:22:58'On the way back down to lure out our undulated eel,
0:22:58 > 0:23:01'we spot another moray species living next door.'
0:23:04 > 0:23:05Look at this!
0:23:07 > 0:23:10Now I've got two separate species of eels.
0:23:12 > 0:23:15So we've got a white-mouthed eel, this one here.
0:23:15 > 0:23:18Very, very beautiful, covered in blotches.
0:23:18 > 0:23:22And we actually have a third species.
0:23:23 > 0:23:26This one's a tiger moray.
0:23:26 > 0:23:29And a fourth one as well, Simon! Look!
0:23:36 > 0:23:41The white-mouthed moray is a very curious-looking moray eel.
0:23:44 > 0:23:46Certainly seems quite friendly.
0:23:46 > 0:23:49But I'm quite glad that I've got the mask protecting my face.
0:23:51 > 0:23:54I really wouldn't want it nibbling on my nose.
0:23:56 > 0:24:00It's usually lying with its mouth open
0:24:00 > 0:24:02and the sharp teeth very, very obvious.
0:24:02 > 0:24:07What's not so obvious is that at the back of the throat,
0:24:07 > 0:24:11they have a second set of teeth called the pharyngeal jaws.
0:24:12 > 0:24:15When this animal grabs a hold of food,
0:24:15 > 0:24:21the second set of jaws snaps forward, engages, latches into it.
0:24:21 > 0:24:24It has thin, pointed teeth,
0:24:24 > 0:24:28which mean there's no way the animal's getting away.
0:24:30 > 0:24:34'They've got two sets of jaws and teeth designed to puncture,
0:24:34 > 0:24:36'pierce and restrain prey.
0:24:38 > 0:24:42'But how much might is in a moray's bite?
0:24:45 > 0:24:49'We decide to try out each different species in turn.
0:24:49 > 0:24:52'First up, the undulated moray eel.'
0:24:57 > 0:24:59OK, it's getting stuck in...
0:25:03 > 0:25:08But it hasn't yet managed to land a substantial bite.
0:25:09 > 0:25:12'The undulated just gave it a little nibble.
0:25:15 > 0:25:17'What can our white-mouthed moray manage?
0:25:17 > 0:25:19'He certainly seemed to have attitude.'
0:25:23 > 0:25:24Go on, give it a proper bite!
0:25:28 > 0:25:31Good force, very good force.
0:25:31 > 0:25:35It measured about 50lb per square inch.
0:25:35 > 0:25:38Which is more than I managed!
0:25:38 > 0:25:40And for an animal of that size
0:25:40 > 0:25:43whose head is probably no bigger than my fist,
0:25:43 > 0:25:45that is phenomenal.
0:25:46 > 0:25:51'This yellow margined moray is a muscle-bound horror show.'
0:25:55 > 0:25:56Yes!
0:26:01 > 0:26:02Go on, get stuck in!
0:26:04 > 0:26:07Wow! It's really, really strong!
0:26:09 > 0:26:11It's pulling me right into the coral.
0:26:13 > 0:26:15I'm very glad that wasn't my hand.
0:26:15 > 0:26:17'But that can't be right.
0:26:17 > 0:26:20'The yellow-margined seemed to be the strongest
0:26:20 > 0:26:21'and we're not getting a reading.'
0:26:23 > 0:26:27No wonder it's not registering anything. It's punctured!
0:26:29 > 0:26:35The teeth are so sharp and thin, they've gone right through it!
0:26:36 > 0:26:39'Well, it's made a right mess of my gauge.
0:26:39 > 0:26:42'Imagine what it could do to a luckless fish.'
0:26:46 > 0:26:51'And that jaw strength is driving home a barbaric set of teeth.
0:26:52 > 0:26:56'Each one is long, thin, wickedly sharp.
0:26:56 > 0:26:58'Together they make a trap that every reef resident
0:26:58 > 0:27:00'must surely fear.'
0:27:04 > 0:27:06I have to say, I'm very glad
0:27:06 > 0:27:10that it was getting stuck into the bite test gauge and not my fingers.
0:27:10 > 0:27:14Beautiful creatures. Sinister, creepy-looking
0:27:14 > 0:27:16and undeniably deadly.
0:27:19 > 0:27:22With a bite force stronger than a human,
0:27:22 > 0:27:25teeth so sharp they broke my bite gauge,
0:27:25 > 0:27:28and a hidden second set of jaws.
0:27:29 > 0:27:33Moray eels are the fish-snaring menace of the coral reef.
0:27:38 > 0:27:40Join me next time, as I continue my journey.
0:27:41 > 0:27:43Yes!