0:00:02 > 0:00:05My name's Steve Backshall.
0:00:06 > 0:00:09This is my search for the Deadly 60.
0:00:10 > 0:00:12Amazing!
0:00:12 > 0:00:17Not just deadly to me, but deadly in their own world.
0:00:17 > 0:00:20My crew and I are travelling the planet,
0:00:20 > 0:00:23and you're coming every step of the way.
0:00:30 > 0:00:35This time on Deadly 60, we're in the Ibera wetlands of Argentina.
0:00:35 > 0:00:41It's a swamp the size of a small country, and we're looking for predators in these waters.
0:00:43 > 0:00:48Argentina is the second biggest country in South America.
0:00:48 > 0:00:502,000 miles from north to south,
0:00:50 > 0:00:53there's a massive variety of landscapes.
0:00:53 > 0:00:58We've chosen this marshland because lurking in the swamps
0:00:58 > 0:01:01are some truly ferocious beasts.
0:01:03 > 0:01:09We're based in a cattle ranch right at the water's edge.
0:01:09 > 0:01:11Joining me are my trusty crew.
0:01:11 > 0:01:15Just like me, they were all born in the saddle.
0:01:15 > 0:01:19And that's lucky, because it's the best way to get around.
0:01:27 > 0:01:30Yee-ha!
0:01:33 > 0:01:38Horseback's a fantastic way to look for wildlife for a bunch of reasons.
0:01:38 > 0:01:40Horses move at a natural pace.
0:01:40 > 0:01:43They're unlikely to frighten animals. They're quiet.
0:01:43 > 0:01:48In the marshes, it has an extra advantage - elevation.
0:01:48 > 0:01:53I'm twice as far off the ground as I would be if I was walking.
0:01:53 > 0:01:55I can see beyond the rushes
0:01:55 > 0:01:59and also look down into the water and see what lies beneath.
0:01:59 > 0:02:02'We need all the height we can get.
0:02:02 > 0:02:08'We're looking for the king of camouflage, the yellow anaconda.
0:02:08 > 0:02:12'This stealthy serpent is a swamp specialist.
0:02:12 > 0:02:18'When it's in the water, it can hold its breath for over half an hour.
0:02:18 > 0:02:22'Armed with an awesome turn of speed and strong muscular body,
0:02:22 > 0:02:27'the anaconda is a master of constriction.
0:02:27 > 0:02:32'Its sit-and-wait strategy is perfect for hunting in the marshes.'
0:02:32 > 0:02:37It'll lie in wait for days, weeks, sometimes months on end.
0:02:37 > 0:02:40Its eyes and nostrils are on top of its head,
0:02:40 > 0:02:44so it can leave the minimum exposed.
0:02:44 > 0:02:47Which makes it difficult for its prey to spot,
0:02:47 > 0:02:52but also very difficult for us to spot, too.
0:02:52 > 0:02:55We could be here some time.
0:02:55 > 0:02:57'The plan is to ride around the area
0:02:57 > 0:03:01'hoping the horses' hooves will disturb a snake.
0:03:01 > 0:03:04'With luck, we'll see it move.
0:03:04 > 0:03:07'It's a bit like looking for a camouflaged needle
0:03:07 > 0:03:11'in a haystack the size of a small country.'
0:03:11 > 0:03:17It's quite spooky, what could be lying beneath this stuff.
0:03:17 > 0:03:22'We come across some of the strangest animals in the area.
0:03:22 > 0:03:27'These giant rodents are called capybara.
0:03:27 > 0:03:31'They're a favourite snack for our anaconda,'
0:03:31 > 0:03:34- SNORTS - 'That is a warning call,
0:03:34 > 0:03:38'alerting other capybara that we're around.
0:03:38 > 0:03:43'We'd been riding for three hours when when our patience is rewarded.'
0:03:43 > 0:03:45Something's in here.
0:03:47 > 0:03:50Can you take my reins?
0:03:50 > 0:03:56'It could be what we're looking for. Time to get off and investigate.'
0:04:03 > 0:04:06< I saw something else move.
0:04:07 > 0:04:11'The water's been stirred up by our horses.
0:04:11 > 0:04:16'Everyone has their eyes peeled for the smallest movements.
0:04:18 > 0:04:20'Especially under foot.
0:04:27 > 0:04:34'Just as we're about to give up, my foot hits something hard.'
0:04:35 > 0:04:36Aargh!
0:04:36 > 0:04:38That was a caiman.
0:04:38 > 0:04:42And I've just been given a really nasty bite.
0:04:42 > 0:04:46'With all the knowledge and planning in the world,
0:04:46 > 0:04:50'there's always a risk when working with wild animals.'
0:04:50 > 0:04:52Oh, dear.
0:04:52 > 0:04:57I've just had one of my first nasty bites from an animal.
0:04:57 > 0:05:00Trodden on a caiman and it's whipped round...
0:05:02 > 0:05:05..and taken a chunk out of my leg.
0:05:05 > 0:05:11So, unfortunately, anaconda hunting is off for the rest of the day.
0:05:11 > 0:05:14'I'm a little shaken, but OK.
0:05:14 > 0:05:20'After a crocodile bite, I have to get my cut properly disinfected.
0:05:20 > 0:05:25'So it's off to the doctor, but our snake hunt certainly isn't over.'
0:05:29 > 0:05:34'The next morning, it's time to get a look at the animal that bit me.
0:05:34 > 0:05:39'Nearby is a lagoon that's absolutely loaded with caimans.'
0:05:39 > 0:05:45It's 24 hours since my disagreement with a spectacled caiman.
0:05:45 > 0:05:47I've been all patched up.
0:05:47 > 0:05:51It's a bit sore but I can still walk all right.
0:05:51 > 0:05:56The last thing I want is people thinking that spectacled caiman
0:05:56 > 0:06:00are evil monsters lurking in the mud waiting for a person to walk past
0:06:00 > 0:06:02so they can pounce on them.
0:06:02 > 0:06:08Spectacled caimans are one of the least aggressive crocodilians towards people.
0:06:08 > 0:06:11Unless you step on one like I did!
0:06:13 > 0:06:17'First, we've got to get close to one. And here's how.'
0:06:17 > 0:06:20What I'm hoping is...
0:06:20 > 0:06:24I can make some vibrations in the water...
0:06:25 > 0:06:30..and they'll think that it's a struggling animal, and investigate.
0:06:30 > 0:06:32Keep your eyes open, guys.
0:06:32 > 0:06:36'It doesn't take long for them to sense us.'
0:06:36 > 0:06:40See those eyes above the surface?
0:06:40 > 0:06:44He's definitely got his eyes on me.
0:06:47 > 0:06:49Look at that!
0:06:49 > 0:06:53'They're coming in surprisingly fast.'
0:06:53 > 0:06:59Everything about its profile is perfect for its method of hunting.
0:06:59 > 0:07:01Even in water this shallow,
0:07:01 > 0:07:06the only thing above the surface are the eyes and nostrils.
0:07:06 > 0:07:08So he can breathe
0:07:08 > 0:07:13and get a good look at what he's thinking of hunting.
0:07:13 > 0:07:18'Unusually for spectacled caiman, this one seems unafraid of people.'
0:07:21 > 0:07:27He might even come up out of the water if we give him a bit of space.
0:07:27 > 0:07:30Here he comes.
0:07:30 > 0:07:34'This caiman is about the same size as the one that bit me.
0:07:34 > 0:07:38'We're getting a better look than I dared to hope for.'
0:07:50 > 0:07:53Look at that mouth!
0:07:53 > 0:07:57'75 curved cone-shaped teeth with the muscle behind them
0:07:57 > 0:08:01'for one of the most powerful bites in the animal kingdom.
0:08:01 > 0:08:07'The teeth punch through the upper jaw, a lethal trap for its victim.'
0:08:07 > 0:08:11The reason it's known as the spectacled caiman
0:08:11 > 0:08:15is between the eyes there's a boney ridge that looks like
0:08:15 > 0:08:18the bridge on a pair of glasses.
0:08:18 > 0:08:22Now we've got one that's being friendly,
0:08:22 > 0:08:25what I'd like to do is to show you one hunting.
0:08:25 > 0:08:29To do that, we head back into the water.
0:08:31 > 0:08:35'The idea is to draw a fish right past me.
0:08:35 > 0:08:40'Using a tiny underwater camera, I'll show you a wild caiman
0:08:40 > 0:08:43'snapping at its prey.'
0:08:43 > 0:08:47See how cautious he is because we're here.
0:08:47 > 0:08:52In this situation, spectacled caiman would keep away from people.
0:08:52 > 0:08:59So even though there's that yummy fish reward, he's a bit nervous.
0:08:59 > 0:09:03'Caiman are opportunists, so it doesn't take him long.'
0:09:03 > 0:09:08Look at this. He's getting over his natural nerves.
0:09:10 > 0:09:13Oh, wow!
0:09:14 > 0:09:17This is quite a strange sensation.
0:09:17 > 0:09:23Being this close to a crocodile in the water,
0:09:23 > 0:09:26looking into its mouth.
0:09:26 > 0:09:32When he sinks below the water like that, he completely disappears.
0:09:32 > 0:09:35'With vibration sensors round their mouth
0:09:35 > 0:09:39'spectacled caiman detect tiny movements.
0:09:39 > 0:09:45'A specialised heart means they can hold their breath for over an hour.
0:09:45 > 0:09:49'But when they flick the switch, their speed is sensational.
0:09:49 > 0:09:52'Virtually nothing escapes those jaws.'
0:09:58 > 0:10:01Whoa! It's got the fish!
0:10:01 > 0:10:05I never thought I'd be able to be this close
0:10:05 > 0:10:08to a wild crocodilian feeding.
0:10:13 > 0:10:15Give it a good pull!
0:10:15 > 0:10:17Supper time!
0:10:18 > 0:10:21Yes!
0:10:21 > 0:10:24He's going to lift his head out the water
0:10:24 > 0:10:29and throw that fish back in one gulp.
0:10:29 > 0:10:33'Having seen it hunting, and experienced its weapons first-hand,
0:10:33 > 0:10:37'I know it's not a human-hunter but a super-charged predator.
0:10:37 > 0:10:41The spectacled caiman - fish-munching,
0:10:41 > 0:10:43capybara-crunching,
0:10:43 > 0:10:48absolutely awesome, and on the Deadly 60.
0:11:12 > 0:11:16'One animal down, it's time for some well-earned grub
0:11:16 > 0:11:21'before we head into the night to see what we can find.
0:11:21 > 0:11:25'We decide to explore a small patch of woodland
0:11:25 > 0:11:27'laden with roosting birds.
0:11:27 > 0:11:32'There's a chance that where there's prey, predators are lurking.
0:11:32 > 0:11:36'No sooner have we set foot, than we're causing a stir.'
0:11:36 > 0:11:42Hundreds of birds peacefully sleeping and we're waking them up.
0:11:42 > 0:11:45Sorry.
0:11:45 > 0:11:50'And, try as we might, we can't get them to sit still.'
0:11:50 > 0:11:52WINGS FLAP
0:11:52 > 0:11:56'Surprisingly, the noise works in our favour.'
0:11:56 > 0:12:01There's two foxes just beyond our gaze.
0:12:02 > 0:12:09And I think they'll stay just at that distance away from us.
0:12:09 > 0:12:14'The foxes are prowling around this bird roost, looking for eggs
0:12:14 > 0:12:16'or possibly dead chicks.'
0:12:20 > 0:12:22Chances of a shot? Zero.
0:12:22 > 0:12:28'The director has a trick up his sleeve - imitating the noise of an animal in distress.'
0:12:28 > 0:12:30SQUAWKING
0:12:32 > 0:12:35No way?!
0:12:35 > 0:12:38WHISPERS: Shine the torch.
0:12:38 > 0:12:40Carry on, Giles. Do it again.
0:12:40 > 0:12:43SCREECHING AND SQUAWKING
0:12:50 > 0:12:52WHISPERS: Bingo.
0:12:53 > 0:12:57'And this one seems remarkably relaxed.'
0:13:04 > 0:13:10It's wonderful. These foxes were keeping a very respectable distance from us,
0:13:10 > 0:13:15until Giles, our director, pulled an old trick out the bag.
0:13:15 > 0:13:18He made the noise of a dying rabbit
0:13:18 > 0:13:21and they've both come to within metres of us.
0:13:21 > 0:13:26He's really rather beautiful, isn't he?
0:13:28 > 0:13:31There's a valuable lesson learnt.
0:13:31 > 0:13:37If you can't go to the animals, get them to come to you by making noises and conning them.
0:13:40 > 0:13:44'In no time at all, the new day arrives.
0:13:44 > 0:13:47'It's back on the hunt for deadly animals.
0:13:47 > 0:13:53'With my leg too sore for anaconda hunting on horseback, we're looking for the infamous piranha.
0:13:53 > 0:13:57'The best way to see these feisty fish is with a rod
0:13:57 > 0:13:59'and a chunk of meat.'
0:13:59 > 0:14:02How do I cast this thing?
0:14:02 > 0:14:07'Time to catch ourselves a piranha, and it doesn't take long.'
0:14:07 > 0:14:11Ooh. Have something. I've got piranha already.
0:14:17 > 0:14:22There are several species of piranhas in these waterways.
0:14:22 > 0:14:24This is a smaller one.
0:14:24 > 0:14:26Beautiful yellow colours.
0:14:26 > 0:14:28Black bar down the tail.
0:14:28 > 0:14:31This isn't what we're looking for.
0:14:31 > 0:14:35There's a species of piranha in here that dwarfs this baby.
0:14:35 > 0:14:38That's what we're hoping to catch.
0:14:41 > 0:14:47I want to wash my fingers but I don't want to put them in the water.
0:14:47 > 0:14:49More bait, please.
0:14:49 > 0:14:52Bite, little fishy.
0:14:53 > 0:14:57'Piranhas are virtually throwing themselves into the boat,
0:14:57 > 0:15:00'but not the ones we're after.'
0:15:00 > 0:15:02Is this the same species as before?
0:15:04 > 0:15:07A piranha has bitten through the hook.
0:15:07 > 0:15:10- Really?- I think that was a monster.
0:15:10 > 0:15:13'Big ones are definitely out there.'
0:15:23 > 0:15:25Er... More bait, please?
0:15:27 > 0:15:31'But even the monsters can't avoid us for ever.'
0:15:31 > 0:15:34Yay! Good catch!
0:15:40 > 0:15:43Now, THAT is a piranha.
0:15:43 > 0:15:45This is the real deal.
0:15:46 > 0:15:50Local people call these "the brave piranha".
0:15:50 > 0:15:54Also, "the yellow", from the wonderful yellow belly.
0:15:54 > 0:15:59I'm now about to show you one of the most awesome sets of gnashers
0:15:59 > 0:16:02you'll see in the animal kingdom.
0:16:02 > 0:16:05Hopefully, without losing one of my fingers.
0:16:09 > 0:16:13- STEVE GASPS - Look at those!
0:16:14 > 0:16:17The teeth are fiercely sharp.
0:16:17 > 0:16:21They interlock with the teeth on the upper jaw.
0:16:23 > 0:16:31Forming a vicious trap that it uses to munch into other fish
0:16:31 > 0:16:35and animals unlucky enough to be struggling in these waters.
0:16:35 > 0:16:40'To show you how sharp their teeth are, watch this.'
0:16:44 > 0:16:46Did you see that?
0:16:46 > 0:16:51Like a chainsaw through chocolate. That's what I call sharp.
0:16:54 > 0:17:00When the water's murky, I wouldn't think of getting in with these guys.
0:17:00 > 0:17:04But I have a plan for showing you how piranhas feed.
0:17:04 > 0:17:08Yes, it is going to involve me going swimming with some.
0:17:08 > 0:17:10Come on then, fella.
0:17:12 > 0:17:14Wa-hay!
0:17:14 > 0:17:16Love it!
0:17:16 > 0:17:19They don't seem to be biting.
0:17:19 > 0:17:23- You boys got anything? - Nothing. Not even a nibble.
0:17:28 > 0:17:33We've found ourselves a sheltered lagoon. The water is much clearer.
0:17:33 > 0:17:41I'm hoping that this is piranha paradise, but there's only one way to find out, and that's to jump in.
0:17:41 > 0:17:44Yeah. Good luck, Steve! STEVE LAUGHS
0:17:44 > 0:17:50'The water is clear so piranhas will be able to see what they're biting
0:17:50 > 0:17:54'and, hopefully, give me a wide berth.
0:17:54 > 0:17:58'I've got a wet suit and gloves, to act as a sort of armour,
0:17:58 > 0:18:00'and a big bit of steak for bait.'
0:18:01 > 0:18:04I'm in piranha-infested waters!
0:18:04 > 0:18:06'With a camera under water,
0:18:06 > 0:18:09'we'll see anything that comes to investigate.
0:18:09 > 0:18:15'It took less than five seconds for piranhas to find our steak.'
0:18:15 > 0:18:17Look at the size of that one!
0:18:17 > 0:18:21It's starting to happen!
0:18:21 > 0:18:24Once we get a few of those showing interest,
0:18:24 > 0:18:28all of its fellow piranhas will pick up the signals.
0:18:28 > 0:18:32They'll start feeding and that's when it gets spectacular.
0:18:32 > 0:18:34'The piranha picks up vibrations
0:18:34 > 0:18:38'with tiny hair cells called a lateral line.
0:18:38 > 0:18:44'Vibrations coupled with the scent of blood act like a dinner bell.'
0:18:44 > 0:18:46Look at that!
0:18:46 > 0:18:50They're going absolutely crazy.
0:18:50 > 0:18:53They are tearing the meat to shreds.
0:18:53 > 0:18:57'After 30 seconds, the number of piranhas has trebled,
0:18:57 > 0:19:00'as they race in from hundreds of metres away.'
0:19:00 > 0:19:03They come in at great speed
0:19:03 > 0:19:08and sink those interlocking surgical scalpel-sharp teeth into the meat,
0:19:08 > 0:19:11then wrench away, using all of their bulk,
0:19:11 > 0:19:14taking a great big chunk of meat.
0:19:14 > 0:19:17Then the next one comes in.
0:19:17 > 0:19:23It's like a conveyor belt of frenzied fish. It's just incredible.
0:19:23 > 0:19:25'Piranhas don't hang around
0:19:25 > 0:19:29'because many of their colleagues are cannibals.
0:19:29 > 0:19:35'This constant darting around makes it look like the water's boiling.'
0:19:35 > 0:19:41This is just one of the phenomenal displays of predatory behaviour
0:19:41 > 0:19:43you'll ever see.
0:19:43 > 0:19:46The water is thick with fish.
0:19:46 > 0:19:50'And, only three minutes later...'
0:19:50 > 0:19:52Look at this!
0:19:52 > 0:19:55Look what's left of our meat!
0:19:55 > 0:19:58They've totally destroyed it.
0:19:59 > 0:20:02A few little sad bits of bone left.
0:20:03 > 0:20:09And I'm stood here, hoping that my wet suit's gonna protect me.
0:20:09 > 0:20:11Whose idea was this, anyway?
0:20:11 > 0:20:14'I've just been in amongst
0:20:14 > 0:20:18'one of the most fearsome feeding frenzies in the animal kingdom.'
0:20:18 > 0:20:25I don't think anyone's going to doubt piranhas have got to go on the Deadly 60.
0:20:25 > 0:20:28- Can I get out now, please? - LAUGHING >
0:20:49 > 0:20:53'Two days after our painful setback, my leg's healed enough
0:20:53 > 0:20:56'to get back on the trail of our yellow anaconda.'
0:20:56 > 0:21:00Ride 'em, cowboy! Yee-ha!
0:21:00 > 0:21:06'We've only got one more afternoon so we're doing everything we can to maximise our chances.'
0:21:06 > 0:21:11We have such a vast area of swampy land to cover.
0:21:11 > 0:21:17We're trying to spread out so we can cover as much ground as we can.
0:21:17 > 0:21:21'It's not long before we find something intriguing.'
0:21:23 > 0:21:25This is really interesting.
0:21:25 > 0:21:33This big area of dry vegetation is an old caiman nest.
0:21:33 > 0:21:36Around here are loads of baby caiman,
0:21:36 > 0:21:41just the kind of food our anaconda would love to get stuck into.
0:21:41 > 0:21:46'There's as many as 40 miniature crocs and I have to show you one.'
0:21:48 > 0:21:50Success.
0:21:52 > 0:22:00Anyone that thinks that crocodiles are nasty evil killing machines,
0:22:00 > 0:22:02have a look at that!
0:22:02 > 0:22:09That has to be one of the prettiest, cutest critters you will ever see.
0:22:09 > 0:22:12No more than just a few days old.
0:22:12 > 0:22:15Isn't that beautiful?
0:22:15 > 0:22:17SQUEAKS
0:22:17 > 0:22:20Do you hear that sound?
0:22:20 > 0:22:25That's the call to all the others to duck below the surface.
0:22:25 > 0:22:29Little splashes going off around me all the time
0:22:29 > 0:22:31from all his brothers and sisters.
0:22:31 > 0:22:34Isn't he wonderful?
0:22:36 > 0:22:42That call is not just going to tell the other hatchlings to stay quiet.
0:22:42 > 0:22:44It's also going to bring Mum in.
0:22:44 > 0:22:48She is a fantastic mother and takes great care of her young.
0:22:48 > 0:22:53The last thing we want to do is upset her so, for this little guy,
0:22:53 > 0:22:55it's back to the pond.
0:23:03 > 0:23:05Absolutely champion.
0:23:05 > 0:23:10'With all these tasty morsels, it seems like the perfect spot
0:23:10 > 0:23:13'to hunt for our anaconda on foot.
0:23:19 > 0:23:24'But our anaconda camo-killers are just too expert at not being seen.
0:23:32 > 0:23:36'Eventually, our time's up. We have to head home.
0:23:36 > 0:23:39'But all is not lost.
0:23:40 > 0:23:44'This wild anaconda was rescued from being squished on the road.
0:23:44 > 0:23:47'It's time to release it.'
0:23:47 > 0:23:50So this isn't a tame snake.
0:23:50 > 0:23:54Which is why I'm not handling it with my bare hands.
0:23:56 > 0:23:59Will it let me just get it out?
0:24:05 > 0:24:08So...
0:24:08 > 0:24:13this beautiful snake is a yellow anaconda.
0:24:13 > 0:24:16It's actually quite a small one.
0:24:16 > 0:24:20This snake can get up to four metres, the big females.
0:24:20 > 0:24:24As it's opening its mouth,
0:24:24 > 0:24:29it's revealing the rows of razor-sharp teeth.
0:24:29 > 0:24:33They're like needles and they all point back towards the throat.
0:24:33 > 0:24:36Once it's got a hold of prey,
0:24:36 > 0:24:40it's almost impossible for them to escape.
0:24:40 > 0:24:46Look how those teeth point backwards, into the mouth.
0:24:48 > 0:24:53Even though this is a non-venomous snake, a bite would be very painful.
0:24:53 > 0:24:56Obviously, yellow anacondas don't eat people.
0:24:56 > 0:25:00What they eat is the water birds and small mammals
0:25:00 > 0:25:02around the swamp where they live.
0:25:02 > 0:25:05'This may not see me as prey,
0:25:05 > 0:25:10'but he's giving me a good example of how they overpower their victim.'
0:25:10 > 0:25:12This little male
0:25:12 > 0:25:17is transmitting an enormous amount of power into my hand.
0:25:17 > 0:25:19Look how it's doing it.
0:25:19 > 0:25:21It's wrapped several coils around
0:25:21 > 0:25:26and then has this extra coil going lengthways across it
0:25:26 > 0:25:28that it's using to anchor itself.
0:25:28 > 0:25:32Just increasing its grip and its squeeze.
0:25:34 > 0:25:39That is like the firmest handshake I've ever had!
0:25:39 > 0:25:42If I was to allow that to continue,
0:25:42 > 0:25:45it would probably start breaking my hand bones.
0:25:45 > 0:25:47Ow!
0:25:50 > 0:25:55I wasn't joking. This will actually start to break my hand pretty soon.
0:25:55 > 0:26:00'I need to get him off as quickly and carefully as I can.'
0:26:00 > 0:26:03Ugh! Wow!
0:26:04 > 0:26:06Can I help? >
0:26:06 > 0:26:11That is a perfect example of how strong
0:26:11 > 0:26:14the yellow anaconda can be.
0:26:14 > 0:26:16Almost brought me to my knees.
0:26:16 > 0:26:20'That strength is backed up by acute senses.'
0:26:20 > 0:26:23Look at that tongue flicking out.
0:26:23 > 0:26:26This is the prime method of sense for snakes.
0:26:26 > 0:26:30Drawing in molecules of taste and smell from the air,
0:26:30 > 0:26:33and processing them in their mouths.
0:26:33 > 0:26:37OK, back to the swamps where he belongs.
0:26:37 > 0:26:39Let's go.
0:26:39 > 0:26:42'100 metres away, we find the perfect spot.
0:26:42 > 0:26:47'Time to do our bit for snake conservation.'
0:26:47 > 0:26:53This is about as perfect a habitat as you will ever see.
0:26:53 > 0:26:59So, back to the swamp for our beautiful yellow anaconda.
0:27:03 > 0:27:06Look how quickly he disappears.
0:27:06 > 0:27:11That's why yellow anacondas have to go on the Deadly 60.
0:27:11 > 0:27:14You would never know he was there.
0:27:36 > 0:27:37'Next time...'
0:27:37 > 0:27:41This is just extraordinary.
0:27:46 > 0:27:49That is an ENORMOUS snake.
0:28:05 > 0:28:08Subtitles by Red Bee Media Ltd