0:00:02 > 0:00:04Welcome to Natural Born Hunters,
0:00:04 > 0:00:06where three of the world's top predators
0:00:06 > 0:00:09go head-to-head in a race to eat.
0:00:13 > 0:00:17To be the fittest, the healthiest and at the top of their game,
0:00:17 > 0:00:19they all need food.
0:00:20 > 0:00:22Without it, they'll die.
0:00:22 > 0:00:24We compare how they hunt
0:00:24 > 0:00:26and why eating today really does matter.
0:00:28 > 0:00:32But even for top predators, meal times aren't always guaranteed.
0:00:33 > 0:00:36Success and failure hangs in the balance.
0:00:37 > 0:00:40Three will hunt, but only one will be crowned
0:00:40 > 0:00:42today's Natural Born Hunter.
0:00:42 > 0:00:45The question is, who are you backing?
0:00:51 > 0:00:53- I'm Steve.- And I'm Barney.
0:00:53 > 0:00:57We'll be commentating on all the action you're about to see.
0:00:59 > 0:01:01It'll be tough to pick a winner, Barney.
0:01:01 > 0:01:03They all have special weapons to catch a meal.
0:01:03 > 0:01:07Brilliant. My kind of show. Some hi-tech hunters.
0:01:07 > 0:01:10Techno-predators with impressive weapons.
0:01:10 > 0:01:13These three use their bodies in extraordinary ways
0:01:13 > 0:01:17- with some of the best weapons on the market.- It's gonna be amazing!
0:01:17 > 0:01:18But dinner's no guarantee.
0:01:18 > 0:01:22Their prey aren't sitting ducks. In the race to feed first,
0:01:22 > 0:01:25who has the best weapon?
0:01:30 > 0:01:32Contenders, ready!
0:01:32 > 0:01:37- Wow, is that a bear behind?- Yes, this monster is the grizzly bear.
0:01:37 > 0:01:41Anyone getting in the way of these guys will come a-cropper!
0:01:41 > 0:01:45Grizzlies have many special weapons to help them catch their dinner.
0:01:45 > 0:01:49But as weapons go, those claws are something special.
0:01:49 > 0:01:53I bet they'd rip anything to shreds with those monster nails!
0:01:53 > 0:01:55Grizzlies' claws aren't just for slicing.
0:01:55 > 0:01:59They use them for digging, fishing, even prising things open.
0:01:59 > 0:02:04If something is worth eating, the claws mean the grizzly has a chance.
0:02:04 > 0:02:07There's more to them than I thought. Who's next?
0:02:07 > 0:02:10Our second contenders are the Red Arrows of the bird world.
0:02:10 > 0:02:13- The gannet.- They're beautiful.
0:02:13 > 0:02:16They don't look like fearsome predators.
0:02:16 > 0:02:20Looks can be deceiving. Any fish spotted by one of these guys
0:02:20 > 0:02:22is about to get harpooned.
0:02:22 > 0:02:27When they lock onto a target, they smash into the water at 60mph!
0:02:27 > 0:02:29That's incredible.
0:02:29 > 0:02:32Their bodies are the perfect design for plunge diving.
0:02:32 > 0:02:36The most dangerous time is the point of entry when the bill carves
0:02:36 > 0:02:40a hole in the water before grabbing as many fish as possible.
0:02:40 > 0:02:42It's one formidable weapon.
0:02:42 > 0:02:43Time for our final contender.
0:02:43 > 0:02:47I recognise that guy! He's a chameleon.
0:02:47 > 0:02:51That's right, a Jackson's chameleon from East Africa.
0:02:51 > 0:02:55- Not difficult to spot those three weapons!- They're not for hunting.
0:02:55 > 0:02:58Our third contender has one very big and special weapon.
0:02:58 > 0:03:02But he's keeping it hidden. ..Oh, no he's not!
0:03:02 > 0:03:06Look at that! That tongue is nearly twice the length of his body
0:03:06 > 0:03:10- and is his most impressive weapon. - That's weird!
0:03:10 > 0:03:14It is weird. And it's one way of getting a mouthful.
0:03:14 > 0:03:16His tongue's a mouthful on its own!
0:03:16 > 0:03:20That is one very big, if a little slimy, weapon.
0:03:22 > 0:03:25OK. Those are our three contenders.
0:03:25 > 0:03:28The grizzly bear, the gannet and the Jackson's chameleon.
0:03:28 > 0:03:30Very different hunting techniques,
0:03:30 > 0:03:33all with special weapons. What do you reckon, Barn?
0:03:33 > 0:03:36Well, the grizzly bear's claws look pretty mean
0:03:36 > 0:03:38so I think he's got the best chance.
0:03:38 > 0:03:42But a bird with a bill like an arrow and a lizard with a lasso tongue,
0:03:42 > 0:03:46- it's hard to call.- They've all got to eat different amounts.
0:03:46 > 0:03:48To help you and everyone at home,
0:03:48 > 0:03:51this fuel gauge will show you how each hunter is getting on.
0:03:51 > 0:03:54The first contender to hit full is our winner.
0:03:54 > 0:03:56We'll find out as we recreate a day in the lives
0:03:56 > 0:04:01of our natural born hunters as they battle for the title of best weapon.
0:04:02 > 0:04:05So, who's our first contender?
0:04:05 > 0:04:08Well, this is our young grizzly bear.
0:04:08 > 0:04:12He's four years old, but big enough to look after himself.
0:04:12 > 0:04:14He's got a lot of weight to put on before winter.
0:04:14 > 0:04:18- In the next three months, he needs to double his weight.- Double?!
0:04:18 > 0:04:22- Why so big?- Now it's late summer and there's loads of food around.
0:04:22 > 0:04:26But in winter it's extremely cold, and food is very hard to find.
0:04:26 > 0:04:30So he needs to eat six months'-worth of food in just three months.
0:04:30 > 0:04:33- What happens if he doesn't? - If he doesn't feed up now,
0:04:33 > 0:04:37- he won't survive the winter. - Sounds serious. Hang on a minute,
0:04:37 > 0:04:40- what predator eats grass? - Bears are actually omnivores.
0:04:40 > 0:04:44- So he eats omnis?- Actually, it means they kind of eat anything.
0:04:44 > 0:04:49Animals, plants, like us. He'll eat whatever he can find.
0:04:49 > 0:04:52But now he's after some juicy roots.
0:04:52 > 0:04:55- Juicy roots don't sound full of energy.- They're not.
0:04:55 > 0:04:57But roots and berries are easy to find
0:04:57 > 0:05:00and don't take much energy to dig out.
0:05:00 > 0:05:02To gain the weight he needs to survive winter,
0:05:02 > 0:05:05he needs ten kilograms of high-energy food today
0:05:05 > 0:05:09- and preferably meat. - That's like 90 beef burgers!
0:05:09 > 0:05:13But in a place this big, it's not as easy as going to the Drive-thru.
0:05:13 > 0:05:15For our boy, it's time to get moving.
0:05:16 > 0:05:19This is Bass Rock in Scotland,
0:05:19 > 0:05:22- where our gannet family lives. - There's hundreds!
0:05:22 > 0:05:25Not just hundreds, there are thousands.
0:05:25 > 0:05:28- 150,000, to be precise. - Why so many in one place?
0:05:28 > 0:05:32With no predators on the island, it's a safe place to raise a family
0:05:32 > 0:05:35- so they come back year after year. - Looks a bit cramped, Steve.
0:05:35 > 0:05:39- What if you get rowdy neighbours? - It may not look like it,
0:05:39 > 0:05:42but the nests are spaced out just beyond pecking distance
0:05:42 > 0:05:45to stop the majority of fights.
0:05:45 > 0:05:46This is our gannet family.
0:05:46 > 0:05:50That's our mum and her little baby chick.
0:05:50 > 0:05:53Talk about ugly ducklings! Not much to look at.
0:05:53 > 0:05:57It's hard to imagine they grow into these beautiful birds.
0:05:57 > 0:06:00But in a few years, she'll look just like our mum.
0:06:00 > 0:06:04To complete the family picture, here comes Dad!
0:06:04 > 0:06:05Who's attacking Mum!
0:06:05 > 0:06:09This is Mum and Dad being affectionate to each other.
0:06:09 > 0:06:13Gannets mate for life, building strong bonds over nearly 20 years.
0:06:13 > 0:06:16Bill waving like this is a bit like a kiss and a cuddle.
0:06:16 > 0:06:20- How much food does our family need? - Enough to feed all three of them.
0:06:20 > 0:06:23Mum and Dad only share their food with the chick, not each other.
0:06:23 > 0:06:28The chick needs three meals a day, so they have to hunt in a tag team.
0:06:28 > 0:06:32While one's away, the other protects the chick, then they swap places.
0:06:32 > 0:06:35This is the first time I've seen parents hunting together.
0:06:35 > 0:06:39Now that Dad's here, he can feed the chick the meal he's brought.
0:06:39 > 0:06:43Where are the fish? I can't see... Oh, no, he's not! Oh, he is.
0:06:43 > 0:06:48- That's gross!- Warm sushi may not be our idea of a nice breakfast,
0:06:48 > 0:06:50but to a chick, it's perfect.
0:06:50 > 0:06:54She has to grow 75 times bigger than when she hatched, in three months!
0:06:54 > 0:06:58Fish are packed with the oily energy our chick needs.
0:06:58 > 0:06:59But she needs a lot of them.
0:06:59 > 0:07:02My dad said I ate like a gannet. Now I know why!
0:07:02 > 0:07:06Yes, and our chick still needs another two meals today.
0:07:06 > 0:07:08Let's catch up with our chameleon.
0:07:10 > 0:07:12This is our male Jackson's chameleon.
0:07:12 > 0:07:14How do you know he's a male?
0:07:14 > 0:07:17Those three horns are the big give-away.
0:07:17 > 0:07:22I see. Only the males have them. He's like a mini triceratops!
0:07:22 > 0:07:25Well, they are kind of related to dinosaurs.
0:07:25 > 0:07:29He has a lot of feeding to do. Meals have been hard to come by.
0:07:29 > 0:07:33He's two years old, not big enough to get the best feeding spots yet.
0:07:33 > 0:07:37- How much does he need? - He's after ten meals today.
0:07:37 > 0:07:40Ten?! That's lots. I don't fancy this guy's chances.
0:07:40 > 0:07:42He hardly seems in a rush.
0:07:42 > 0:07:45No. Chameleons use stealth to creep up on their prey.
0:07:45 > 0:07:48It's then down to waiting for the right moment
0:07:48 > 0:07:51to use that lightning-quick tongue.
0:07:52 > 0:07:55Now you know how much food each contender needs.
0:07:55 > 0:07:57Got any ideas who might win?
0:07:57 > 0:07:59The bear and the chameleon need a lot of food.
0:07:59 > 0:08:01I'm tempted to say the gannets.
0:08:01 > 0:08:05They're ahead at the moment, but as you know, anything can happen!
0:08:05 > 0:08:08Time to head back to our grizzly bear.
0:08:08 > 0:08:10Our young bear may only be four,
0:08:10 > 0:08:13but he's got a pretty old head on his shoulders.
0:08:13 > 0:08:16And he needs it because he's got a lot of food to find.
0:08:16 > 0:08:19How does he know what to eat and where to get it?
0:08:19 > 0:08:22He spent the first couple of years with his mum
0:08:22 > 0:08:27learning what to eat, how to find it and importantly, how to catch it.
0:08:27 > 0:08:31But our boy's now old enough to look after himself. It's now down to him
0:08:31 > 0:08:34to find the food he needs. So he follows his nose.
0:08:34 > 0:08:35Another special weapon?
0:08:35 > 0:08:39Yes, he can smell rotting flesh from ten miles away! He'll scavenge
0:08:39 > 0:08:44rather than hunt if he can as that means more energy from less effort.
0:08:44 > 0:08:48But there's a meal that's very much alive on the menu today.
0:08:48 > 0:08:50- Salmon.- Look at them all.
0:08:50 > 0:08:53This time of year, the river is swimming with them
0:08:53 > 0:08:55and they're packed with energy.
0:08:55 > 0:08:57Four of these fish weigh ten kilos
0:08:57 > 0:08:59so that's how many our bear needs today.
0:08:59 > 0:09:01But bears are very territorial.
0:09:01 > 0:09:04When it comes to prime fishing spots, adults rule the roost.
0:09:04 > 0:09:08- They look seriously dangerous. - Exactly.
0:09:08 > 0:09:11He'll have to try his luck a mile further downstream.
0:09:11 > 0:09:17- Who's that, Steve?- That's his mum, teaching her two new cubs to hunt.
0:09:19 > 0:09:23- He can get some food from her. - That's not gonna happen.
0:09:23 > 0:09:25Grizzly mums are very protective of new cubs.
0:09:25 > 0:09:28This food isn't for our boy, it's for the youngsters.
0:09:28 > 0:09:32- Mum lets him know he's not welcome. - So he's on his own.
0:09:34 > 0:09:38These cubs are the only ones who'll benefit from Mum's expert hunting.
0:09:38 > 0:09:41She's taught him all she could. Life for a bear is tough.
0:09:41 > 0:09:45Our boy can only look on as his mum looks after her new family.
0:09:45 > 0:09:47Time to check out the gannets.
0:09:49 > 0:09:53Dad's just fed the chick her first meal of the day.
0:09:53 > 0:09:55Now it's Mum's turn to bring back meal number two
0:09:55 > 0:09:58and conditions look perfect.
0:09:59 > 0:10:02She must have amazing eyesight to see fish from up there.
0:10:02 > 0:10:05Sharp eyesight is critical if you're a gannet.
0:10:05 > 0:10:08She can spot a meal from 30 metres above the water.
0:10:08 > 0:10:10And something's caught her eye.
0:10:15 > 0:10:16Look, she's caught some.
0:10:18 > 0:10:21She's grabbed what she can, but not enough to head home with.
0:10:21 > 0:10:25She needs to fill her belly, which can take quite a few dives.
0:10:25 > 0:10:28Here she goes. Schoom!
0:10:28 > 0:10:30It really is like a torpedo, isn't it?
0:10:30 > 0:10:33Still not enough, though.
0:10:33 > 0:10:36Time to head back into the air and look for more.
0:10:36 > 0:10:40In Africa, our chameleon's found the perfect place for a spot of hunting.
0:10:40 > 0:10:42He needs ten insects today.
0:10:42 > 0:10:45I've got to say, Steve, he looks pretty cool.
0:10:49 > 0:10:51Did you see that?
0:10:51 > 0:10:53That was out of this world!
0:10:54 > 0:10:56And the fuel gauge is going up.
0:10:56 > 0:10:59In just one sixteenth of a second,
0:10:59 > 0:11:01- he's got meal number one. - Incredible.
0:11:01 > 0:11:05I've never seen anything like it. He's amazing.
0:11:05 > 0:11:07It's only meal number one out of ten.
0:11:07 > 0:11:09With that tongue, it won't take long.
0:11:09 > 0:11:13The tongue is one of the greatest in the animal kingdom.
0:11:13 > 0:11:15It explodes into action at 15 metres per second,
0:11:15 > 0:11:20faster than an Olympic athlete. The tongue has ridges to grip the insect
0:11:20 > 0:11:22but he also has two types of saliva,
0:11:22 > 0:11:26one normal and one very sticky, just for the tip,
0:11:26 > 0:11:28meaning any insect sticks to it like glue
0:11:28 > 0:11:32before the tongue folds back into its mouth like an accordion.
0:11:33 > 0:11:35There it goes, number two.
0:11:35 > 0:11:38Amazing there's room for an insect as well as that tongue!
0:11:38 > 0:11:42While the chameleon's busy chomping down his second meal,
0:11:42 > 0:11:46- let's go back to our bear.- He's found a spot to do a bit of fishing.
0:11:46 > 0:11:49Not a great one, though, because the fish are harder to catch here.
0:11:49 > 0:11:53But with less bears around, there's more chance of keeping his catch.
0:11:53 > 0:11:56A mile upstream is where the real action is
0:11:56 > 0:12:00and the big boys are wasting no time in getting stuck in!
0:12:04 > 0:12:08It looks difficult. How do they know which one to go for?
0:12:08 > 0:12:10Just lots and lots of practice.
0:12:10 > 0:12:14There's no such thing as a free meal. You need to earn your salmon,
0:12:14 > 0:12:18which is what our youngster is trying to do a mile downstream.
0:12:18 > 0:12:21I think he may need a few more lessons!
0:12:21 > 0:12:24It's not his hunting that's bad, it's the river.
0:12:24 > 0:12:27Down here, the salmon's defence is working - sheer numbers.
0:12:27 > 0:12:30There are so many, he doesn't know which one to pick!
0:12:30 > 0:12:32What does he need to look for?
0:12:32 > 0:12:35He needs to pick out the tired, the weak,
0:12:35 > 0:12:39- and the ones trapped in small pools. - He's not getting the hang of this!
0:12:39 > 0:12:42Well, it's really no laughing matter.
0:12:42 > 0:12:44He has to pile on the pounds. If he doesn't,
0:12:44 > 0:12:46he won't make it through winter.
0:12:46 > 0:12:48He's got the weapons to catch them,
0:12:48 > 0:12:50he's watched Mum's expert hunting
0:12:50 > 0:12:53and needs to put the lessons into practice.
0:12:55 > 0:12:58I can see what's gonna happen here. Sticky tongue!
0:13:02 > 0:13:05Another demonstration of that incredible tongue!
0:13:05 > 0:13:08Steve, how does he know his tongue's gonna reach?
0:13:08 > 0:13:10Well, practice comes into it.
0:13:10 > 0:13:13Once he knows how long his own tongue is,
0:13:13 > 0:13:15he needs to judge distances.
0:13:15 > 0:13:18The best weapons for doing that are his eyes.
0:13:18 > 0:13:20Are they moving in different directions?
0:13:20 > 0:13:24Yes, so he can cover twice the area that we could.
0:13:24 > 0:13:27But that doesn't help judge distances.
0:13:27 > 0:13:30You need both eyes focused on the target. Binocular vision, like us.
0:13:30 > 0:13:34The clever part is that he can magnify the image
0:13:34 > 0:13:36for a precise distance check.
0:13:36 > 0:13:39If he gets it wrong, the seconds needed to reset the trap
0:13:39 > 0:13:41are enough for the insect to get away.
0:13:41 > 0:13:44Not this time. That was number four.
0:13:44 > 0:13:48- His eyes and tongue are a lethal combo.- They're excellent weapons.
0:13:48 > 0:13:51But our chameleon needs a lot more meals to win the race.
0:13:53 > 0:13:56Time to check the state of play with our contenders.
0:13:58 > 0:14:02There's our bear. After a snack on roots for breakfast,
0:14:02 > 0:14:06he's found the river with all the fish, but hasn't caught any yet.
0:14:06 > 0:14:08- He still needs four big salmon. - Exactly.
0:14:08 > 0:14:11So feeding is the top priority for him right now.
0:14:15 > 0:14:17Our gannet chick had a meal from Dad earlier.
0:14:17 > 0:14:20But she still needs another two for the day.
0:14:20 > 0:14:23Mum's busy hunting, but she needs more fish
0:14:23 > 0:14:25before she can head back with meal two.
0:14:26 > 0:14:29The gannets do have spectacular weapons,
0:14:29 > 0:14:32but that chameleon's tongue is awesome.
0:14:32 > 0:14:34He could give the other contenders a licking!
0:14:34 > 0:14:39The fuel gauges show the gannets are just ahead of the chameleon.
0:14:41 > 0:14:43Mum has a race against time.
0:14:43 > 0:14:48The fish won't be around long so she needs to catch as many as possible.
0:14:48 > 0:14:50Awesome!
0:14:51 > 0:14:54Once she uses that bill to punch a hole in the water,
0:14:54 > 0:14:56it becomes a grabbing machine.
0:14:56 > 0:15:00Diving down to 30 metres, she can hold her breath for a minute,
0:15:00 > 0:15:02giving her time to catch as many fish as possible.
0:15:02 > 0:15:06Then she's out of the water and into the air ready for another hunt.
0:15:06 > 0:15:10She doesn't mess about. That bill is quite some weapon.
0:15:10 > 0:15:13Yes, but she also has a lot of other weapons
0:15:13 > 0:15:15to make hunting a whole lot easier.
0:15:18 > 0:15:22She cruises round using her incredibly powerful eyesight
0:15:22 > 0:15:25to scour for shoals of fish. A good indicator
0:15:25 > 0:15:28of the best feeding spots are where the others are hunting.
0:15:32 > 0:15:35She locks onto the target from 30 metres up,
0:15:35 > 0:15:39tucks her wings back and drops out of the sky.
0:15:40 > 0:15:45A tenth of a second before impact, she folds her wings back completely.
0:15:45 > 0:15:48Wow! Talk about split-second timing!
0:15:48 > 0:15:52One false move and she could break her wings or even knock herself out.
0:15:53 > 0:15:57But as she folds her wings back, she uses another nifty trick
0:15:57 > 0:15:59to help her on impact.
0:15:59 > 0:16:02She inflates air sacs in her neck and shoulders.
0:16:02 > 0:16:05- She's got her own air bags! - Not only that,
0:16:05 > 0:16:09- she also has a very thick skull. - Like a crash helmet?- Yes,
0:16:09 > 0:16:12so she's protected against the huge impact
0:16:12 > 0:16:15and can then start the job of grabbing the fish.
0:16:17 > 0:16:19She has all the fish she can carry.
0:16:19 > 0:16:21Any more and she won't be able to take off.
0:16:21 > 0:16:24Time to get out of the water and on her way home.
0:16:26 > 0:16:29- How are Dad and chick doing? - Let's see.
0:16:29 > 0:16:31Dad's doing his bit protecting her.
0:16:31 > 0:16:35But she's hungry and so Mum had better get back soon.
0:16:35 > 0:16:38Then Dad can head out to get the last meal of the day.
0:16:39 > 0:16:43Now, our young bear hasn't had much luck at this part of the river.
0:16:43 > 0:16:46Looks like he's forgotten what his mum taught him
0:16:46 > 0:16:48and is confused by all the salmon.
0:16:48 > 0:16:52- Like a big fish-based system overload!- So our bear
0:16:52 > 0:16:55needs to snare a fish using those big claws as fishing hooks.
0:16:55 > 0:16:58He's spotted something. Look at him go!
0:16:58 > 0:17:02He's making a lot of a splash but not a lot of result.
0:17:02 > 0:17:07He's stopped. He can feel something. See it in his face. He's got one.
0:17:07 > 0:17:09You're right. But what is it?
0:17:09 > 0:17:14Hang on, that's not even a salmon. It looks like a flatfish!
0:17:14 > 0:17:20Come on! That river's stocked with salmon. You can do better than that!
0:17:20 > 0:17:23Look - he's got competition as well.
0:17:23 > 0:17:25It's taken him hours to get that fish
0:17:25 > 0:17:28and now some brute thinks he can just take it! That's not fair.
0:17:28 > 0:17:30Our youngster's got a lot to learn.
0:17:33 > 0:17:39But he's learned to stay away from the big guys if they want his food.
0:17:40 > 0:17:45OK. Four meals down, but our boy still needs another six to win
0:17:45 > 0:17:47so he's not wasting any time.
0:17:47 > 0:17:50His precision shooting and perfectly still poise
0:17:50 > 0:17:54gives insects little chance of spotting him before it's too late.
0:17:55 > 0:17:59He just moved. What tongue action!
0:17:59 > 0:18:01Five meals now. Thank you very much.
0:18:01 > 0:18:04- Oh. Another meal?- No, he's hiding!
0:18:04 > 0:18:08And that's why. This is an African harrier hawk.
0:18:08 > 0:18:12- He's looking for a lizard lunch. - So the hunter is now the hunted.
0:18:13 > 0:18:17Our chameleon is about 20cm long, around the size of a banana.
0:18:17 > 0:18:21So he's an easy meal. But hiding behind these leaves and not moving
0:18:21 > 0:18:23I don't think he's been spotted.
0:18:23 > 0:18:26Simple yet effective.
0:18:30 > 0:18:34It's just enough. With the bird gone, he's back on the hunt.
0:18:34 > 0:18:38It's not long before he gets meal number six!
0:18:38 > 0:18:41Oh, look at him go!
0:18:41 > 0:18:44Only another four. See his fuel gauge. He's racing ahead.
0:18:47 > 0:18:49Gannet mum is on her way back to the nest
0:18:49 > 0:18:52with a belly filled with fish.
0:18:52 > 0:18:54It's taking her longer, but she's almost back.
0:18:55 > 0:18:59It looks like her chick could do with another meal. And soon.
0:18:59 > 0:19:03Here she is. Mum is back. Just time for a quick hello with Dad
0:19:03 > 0:19:06and time to feed the chick
0:19:06 > 0:19:11- some more warm sick sushi!- It's not any easier watching it again!
0:19:11 > 0:19:14Why does she almost have to swallow the chick?
0:19:14 > 0:19:18The chick makes Mum bring up the fish by pecking at her throat.
0:19:18 > 0:19:20I know it looks pretty grim,
0:19:20 > 0:19:24but Mum can carry far more fish in her stomach than in her beak.
0:19:24 > 0:19:26So it's the most effective way to feed her.
0:19:26 > 0:19:30- Shouldn't Dad be off hunting now? - Yes. But this intruder
0:19:30 > 0:19:33seems to be holding him up.
0:19:33 > 0:19:37- I thought they stuck to their own nest.- This guy doesn't have a nest,
0:19:37 > 0:19:41and with little space left, he's trying to steal our gannets' home.
0:19:41 > 0:19:46- Dad has to defend his patch.- But he still has another meal to catch.
0:19:46 > 0:19:49The intruder has nothing to lose and everything to gain.
0:19:49 > 0:19:52If he wins, it's disaster for our whole family.
0:19:54 > 0:19:58This is brutal! He's got him right round the neck!
0:19:59 > 0:20:02Oh, no, he's fallen! Tell me that's not our dad!
0:20:02 > 0:20:05No. That's the rival male.
0:20:05 > 0:20:07He's been seen off by Dad.
0:20:07 > 0:20:10We won't see him again around these parts.
0:20:10 > 0:20:14No, but that's used up some of Dad's energy and, worse, his time.
0:20:14 > 0:20:17He'd better get cracking to grab the last meal of the day
0:20:17 > 0:20:20before the light fails. Let's catch up with our chameleon.
0:20:25 > 0:20:27And number seven. Thank you very much.
0:20:27 > 0:20:32This guy is steaming ahead. He's an insect-eating machine!
0:20:32 > 0:20:35Yep. And it's all down to those super weapons and that tongue.
0:20:35 > 0:20:38And he's grabbed another one!
0:20:38 > 0:20:41- He's ace.- Was that number eight? - It was meal number eight.
0:20:41 > 0:20:43He's almost there, look.
0:20:45 > 0:20:49- Hang on a second - is he changing colour?- Yes.
0:20:49 > 0:20:53- Why?- Chameleons can change colour through special cells in their skin.
0:20:53 > 0:20:57They're constantly changing depending on light and temperature.
0:20:57 > 0:21:00- But this time, it's down to his mood.- That won't help.
0:21:00 > 0:21:03An angry chameleon? He should be a karma chameleon!
0:21:03 > 0:21:07Oh, Barn! This is phase one of a chameleon fight.
0:21:07 > 0:21:11There's another male who wants to take over these feeding grounds.
0:21:11 > 0:21:14Our boy is telling the other guy he's not welcome.
0:21:14 > 0:21:18And that's what this colour show is about. Phase two.
0:21:18 > 0:21:21Our boy switches back to his brilliant bright colours
0:21:21 > 0:21:24and shows off those three impressive weapons
0:21:24 > 0:21:28as they size each other up. But the intruder fancies his chances
0:21:28 > 0:21:30and is matching every move.
0:21:30 > 0:21:33- Time for the third phase. - Those horns look dangerous.
0:21:33 > 0:21:36These weapons are only used as a last resort.
0:21:41 > 0:21:46- No - he's been knocked off!- And he's lost the best feeding place in town.
0:21:46 > 0:21:50Switching back to dark is like waving the white flag of defeat.
0:21:50 > 0:21:52Surely that's not it for our chameleon?
0:21:52 > 0:21:57I'm afraid so. He was almost there, but now he has to find a new tree.
0:21:57 > 0:22:01That'll take until sunset and then he won't be able to hunt any more.
0:22:01 > 0:22:04He was just two meals away from winning! Poor guy.
0:22:04 > 0:22:08Don't worry. Eight meals is better than he's had for a long time.
0:22:08 > 0:22:11And plenty to keep him going until tomorrow.
0:22:12 > 0:22:14One down, two to go.
0:22:14 > 0:22:17For the bear and the gannet, the battle continues.
0:22:17 > 0:22:22Our young bear still needs four salmon in order to eat enough today.
0:22:22 > 0:22:26After a very light breakfast of roots and grass,
0:22:26 > 0:22:28he managed to catch a fish after hours of trying
0:22:28 > 0:22:31only to lose it to a bigger bear!
0:22:31 > 0:22:34Our gannet family got off to a great start.
0:22:34 > 0:22:36Dad dropped off breakfast mid-morning
0:22:36 > 0:22:38with Mum bringing a late lunch.
0:22:38 > 0:22:42But a tangle with an intruding male has put Dad behind schedule
0:22:42 > 0:22:44for the last meal of the day.
0:22:48 > 0:22:52OK. Dad's found some fish with that razor-sharp eyesight.
0:22:52 > 0:22:57- He looks set to start hunting.- No time to waste. The light is fading.
0:22:57 > 0:23:00- Straight in.- How does he not swallow water going in?
0:23:00 > 0:23:03The bill stays firmly shut and he doesn't have any nostrils.
0:23:03 > 0:23:06- He doesn't need to smell the fish. - Exactly.
0:23:06 > 0:23:08Eyesight is his chief weapon.
0:23:09 > 0:23:11He's straight back out
0:23:11 > 0:23:14to start another smash and grab hunt while conditions are good.
0:23:14 > 0:23:17With no luck in his fishing spot,
0:23:17 > 0:23:21our bear has moved a mile downstream to the beach.
0:23:21 > 0:23:23What about the salmon upstream?
0:23:23 > 0:23:27He's switched tactics. He's an omnivore and eats almost anything.
0:23:27 > 0:23:32He knows that there are other meaty treasures to be found here - clams.
0:23:32 > 0:23:35Very posh. Time for those special weapons to come into action.
0:23:35 > 0:23:39Exactly. He uses his claws to dig into the sand to find them.
0:23:39 > 0:23:41He's making short work of that!
0:23:41 > 0:23:44Doesn't take long to dig a hole with 15-centimetre claws!
0:23:44 > 0:23:47True! Brilliant, he's found some.
0:23:47 > 0:23:50- But clams' shells are tough to crack.- Does he smash them?
0:23:50 > 0:23:54No. His claws can be both spades or lock-pickers.
0:23:54 > 0:23:57There's a real knack to getting in to clams.
0:23:57 > 0:23:59His claws may be big, but he's very nimble
0:23:59 > 0:24:01and can use them very precisely.
0:24:01 > 0:24:03Look, his fuel gauge is going up.
0:24:03 > 0:24:07And where you find one, you find lots of others.
0:24:07 > 0:24:09So, back to our gannets.
0:24:09 > 0:24:11Dad needs just two more good dives
0:24:11 > 0:24:16and he'll have all the fish he needs to feed the chick his last meal.
0:24:16 > 0:24:19It's amazing seeing those weapons
0:24:19 > 0:24:22- come together in a hunt.- Just one more hunt and he can head home.
0:24:22 > 0:24:28He'd better do it quickly. There's a storm brewing. A big one.
0:24:28 > 0:24:29Hope rain doesn't stop play.
0:24:29 > 0:24:31The gannets are so close to winning.
0:24:31 > 0:24:35Yes, but our boy's been busy feasting on clams
0:24:35 > 0:24:38and he's polished his technique for opening them up.
0:24:38 > 0:24:41- Look at his fuel gauge! - With no more clams around
0:24:41 > 0:24:45he needs to head upstream and catch one big salmon to win.
0:24:45 > 0:24:48But that means facing up to the big adult bears.
0:24:48 > 0:24:52He'd getter move quick. The gannet only needs one more feed.
0:24:55 > 0:24:56Here he goes. And he's got it.
0:24:56 > 0:24:58The last meal.
0:24:58 > 0:25:00Look at those waves!
0:25:00 > 0:25:03All that water's running down into the nest!
0:25:03 > 0:25:06He has to get back or that chick's in big trouble.
0:25:06 > 0:25:09Our young bear's made it back to the prime fishing spot.
0:25:09 > 0:25:13- Look at all those bears! - What will he do about those guys?
0:25:14 > 0:25:17I'm hoping the bigger bears will have had enough to eat by now.
0:25:17 > 0:25:20They've fished all day. They're full.
0:25:20 > 0:25:22Here he comes.
0:25:22 > 0:25:24He's missed that one.
0:25:25 > 0:25:27Come on, fella. Patience!
0:25:27 > 0:25:28And he's missed another.
0:25:28 > 0:25:30Come on, Mr Bear!
0:25:30 > 0:25:34There are thousands of fish. He's got to have a chance.
0:25:35 > 0:25:38So this is a serious race against time now.
0:25:38 > 0:25:40Dad has to get back to Mum and our chick.
0:25:40 > 0:25:42Look at the weather - it's awful!
0:25:42 > 0:25:45But isn't he designed for life on the stormy seas?
0:25:45 > 0:25:51He is - but get a load of this guy! This is a Great Skewer.
0:25:51 > 0:25:52They're after a free lunch.
0:25:52 > 0:25:55But they can't take them off him. He's eaten them.
0:25:55 > 0:25:58That's part of the trick of the Great Skewer.
0:25:58 > 0:26:01He's coming in after the gannet and nipping at him,
0:26:01 > 0:26:04forcing him to try and throw up that food.
0:26:05 > 0:26:07And he's just dropped something.
0:26:07 > 0:26:11Yeah, and the skewers have tucked in to it.
0:26:11 > 0:26:13So he's got to hunt another time?
0:26:13 > 0:26:15He has.
0:26:17 > 0:26:21- Back with our bear. And ooh! - So close!- That was so close!
0:26:23 > 0:26:27- Come on. Eyes on the prize!- Good things come to those that wait.
0:26:27 > 0:26:29But we don't have much time to wait!
0:26:31 > 0:26:33Look at those waves!
0:26:33 > 0:26:38Our gannet is battling conditions and he needs to hunt one more time
0:26:38 > 0:26:40to try and get that last fish!
0:26:40 > 0:26:43His chick's getting cold. He's depending on him. Come on, Dad.
0:26:44 > 0:26:46Come on. You can do it.
0:26:48 > 0:26:51Look at this. There's so much salmon there.
0:26:53 > 0:26:56- Ooh!- Yes! He's got it.- He's got it!
0:26:56 > 0:26:58That's the one he needs.
0:26:58 > 0:27:01If he can only get that fish down.
0:27:01 > 0:27:04There's the fuel gauge. It's going up. We have our winner!
0:27:04 > 0:27:06The grizzly bear. I thank you.
0:27:06 > 0:27:09OK. Commiserations to our losers.
0:27:09 > 0:27:13Our chameleon's day ended after he lost a fight with a rival male.
0:27:13 > 0:27:17He'll be back tomorrow, putting that impressive tongue to good use.
0:27:17 > 0:27:20The storm delayed the gannet's last hunt,
0:27:20 > 0:27:22but once it's clear, he'll head back to the nest
0:27:22 > 0:27:25to make sure their chick doesn't go hungry.
0:27:25 > 0:27:28And our young grizzly bear battled the odds
0:27:28 > 0:27:32and used those incredible claws in a variety of ways.
0:27:32 > 0:27:35He's our deserved winner, earning the title of best weapon.
0:27:35 > 0:27:38Join us next time when we'll watch three more contenders
0:27:38 > 0:27:41battle to earn the title of Natural Born Hunter.
0:27:41 > 0:27:43- Until then, see ya!- Bye!
0:27:55 > 0:27:58Subtitles by Red Bee Media Ltd