The Hunger Game World's Sneakiest Animals


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Meet the Steller's jay.

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What a bird!

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At the moment, he does have a bit of a problem.

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It's winter, and food is scarce.

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The garden bird table is a lifeline for this jay...

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..only dozens of other birds

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are making the most of this feast,

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so the food is not going to last very long.

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But our Steller's jay here has a very clever plan.

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In fact, I'd go so far as to say it was downright devious.

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A red-shouldered hawk -

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it's the neighbourhood's top predator.

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Just the sound of its distinctive call

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sends all these birds scattering.

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The jay knows this.

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And it's about to do something that I've never seen or heard before.

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JAY IMITATES HAWK

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One jay has learned to pull off a pitch-perfect copy

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of the hawk's call.

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With the other birds tricked,

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he's got all of the food to himself.

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Look at that!

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That's nature at its most devious.

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And it turns out, the sneaky Steller's jay

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isn't the only one tricking other animals to get itself a meal.

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All across the world, animals face the same dilemma -

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find food or die.

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It really is that simple.

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And of course, there's no guarantee

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of where their next meal is coming from.

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So what can animals do to tip the balance in their favour?

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Would they lie, cheat and deceive one another

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just to get an advantage, just to survive?

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Oh, come on.

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Of course they would.

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Join me as I meet the world's sneakiest animals,

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who'll do whatever it takes to grab themselves a meal.

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The rainforest...

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..where a supremely sneaky animal faces a real challenge.

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The one thing that's apparent in a rainforest like this

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is that you're surrounded by insects.

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Just listen. OVERLAPPING CHIRPING

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There's a vast diversity of these animals living here...

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..which would make you think that if you were an insect predator,

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you'd have things pretty much your own way.

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But I've got to tell you, that isn't necessarily so.

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Lightning-fast and agile, flying insects

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are some of the hardest things to catch on the planet.

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Though one thing is guaranteed to attract their attention...

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..flowers.

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They draw in insects from far and wide

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with their promise of nectar and pollen.

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And one predator exploits this to the full.

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Meet the mantis.

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Or to give it its full name,

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the orchid mantis.

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It's very aptly named, too.

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Look at it. Its whole body

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is the perfect mimic of a flower.

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To fool its prey, this entire animal's body

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is sculpted into a deceitful disguise.

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Combined with pin-sharp vision

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and a ninja-fast strike,

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it makes this mantis a very deadly ambush predator.

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But, you know, even with cover as good as this,

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the pressure is on.

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This mantis is sub-adult at the moment,

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which means that it's got to be right on top of its game.

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It's got to kill something every few days

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or it will simply starve to death.

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The problem is, the mantis relies on an insect visiting

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the specific flower that it's sitting on to make a strike.

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It's a waiting game which could take days.

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Ever since Victorian naturalists first discovered this insect,

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there's been a suspicion that there's something more going on.

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They suspected that the mantis was doing more than just waiting around

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in a clever disguise.

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The strike rate was just too high.

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So could the mantis somehow be attracting insects

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in its own right?

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James O'Hanlon is an expert in orchid mantis behaviour,

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and he's discovering there's far more to this predator

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than first meets the eye.

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We have a simple experiment set up.

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We have two posts in the ground.

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On our first post, we have a flower.

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Our second post, a small mantis.

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And what we're going to do is watch and see

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how many of the insects that are buzzing around here

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fly up and have a look at each of our posts.

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So which one do you want to watch?

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I'm going to gamble.

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I'm going to go with the mantis. Hit me with a notebook.

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BUZZING

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Hmm. The flower is certainly attracting attention.

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Come on, mantis!

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-That's a visit.

-Yeah.

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That was a visit. Excellent.

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Right. I'm off the mark.

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'After a slow start...' And another!

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'..the mantis is making headway.'

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FLUTTERING

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Oh! Did you see that?

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Fantastic.

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I've not been watching your flower, but the mantis is doing rather well.

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-Pretty impressive!

-It is!

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But aside from the count,

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we've already seen something absolutely remarkable.

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Because these bees are visiting the mantis, like that -

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and it's just caught another one!

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The mantis is attracting insects independently of your flower.

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It doesn't need your flower.

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Those bees that are coming up to it think that it's a flower.

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I've done this experiment over and over again.

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More often than not, that little mantis is actually more attractive

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than the real flower.

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The mimic is better than the thing that it's mimicking.

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And that is absolutely astonishing.

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So what exactly is going on here?

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Well, we need to know how insects see the rainforest.

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Their eyes are highly sensitive to certain wavelengths of light,

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so to them flowers glow like beacons in the jungle.

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James measure the brightness of these flowers

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and compared them to the mantis.

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And remarkably, he's discovered that this dazzling fake in the forest

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is a brighter stimulus than any flower.

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Tricked into visiting a deadly trap,

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there's no escape.

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The deception at work here is aggressive mimicry,

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in that the mantis is adopting a disguise, in this case a flower,

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to lure in its prey, and that is the key.

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It's the mantis and not the flower

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which is bringing in the insects which it can then predate.

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Not only is this creature exquisitely beautiful,

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it's remarkably ruthless,

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and in my opinion, totally amazing.

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BIRDSONG

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MUSIC: One Way Or Another by Blondie

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Across the world, animals have adapted their bodies in extreme ways

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to lure their prey.

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# I'm gonna get ya, get ya, get ya, get ya, one way or another

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# I'm gonna win ya

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# I'll get ya, I'll get ya... #

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In Hawaii,

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the carnivorous caterpillar has morphed into a predatory plant.

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# One way or another

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# I'm gonna get ya, I'll get ya

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# I'll get ya, get ya, get ya... #

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The bioluminescent bait of the deep-sea anglerfish

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tempts its prey.

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# One way or another

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# I'm gonna get ya, I'll get ya

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# I'll get ya, get ya, get ya... #

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And in caves in New Zealand,

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the glow worm, with its luminous tail and sticky secretions,

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has created a tantalising trap.

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# One way or another

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# I'm gonna get ya, I'll get ya

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# I'll get ya, get ya, get ya

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# One way or another... #

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This veritable rogues' gallery

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is the result of millions of years of artful adaptation,

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all in aid of catching the next meal.

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But changing the way you look isn't the only way of setting a trap.

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Out on the prairie, a new tenant

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has moved into a deserted den...

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..a burrowing owl...

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..and she has chicks just a few weeks old,

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and they are all hungry.

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They eat insects, and lots of them.

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CHICK CHIRPS

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The female spends every waking hour trying to find enough food.

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And the stakes, well, they're really high.

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You see, 96% of all chick deaths are down to starvation.

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CHICKS CHIRP

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But, luckily, there's a sneaky solution to this problem.

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Cattle graze across these grasslands.

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And what goes in...

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must come out.

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Baked by the sun, the cow dung is ready for collection.

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Could it really be dung for dinner?

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Of course not.

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But it could be considered a rather devious dinner party...

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..because the dung attracts some unsuspecting guests.

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Little do they know, it's them who are on the menu.

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CHIRPING

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And this is where it gets really clever,

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because little insects attract bigger prey.

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Superb.

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You see, instead of flying for miles to find food,

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now she just has to walk a few metres.

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And it's rich pickings for the whole family.

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All thanks to this very crafty trap.

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CHIRPING

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Duping your dinner to come to you

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clearly has its advantages.

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But most top predators need to actively seek out their prey

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to satisfy their needs.

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And that can be a real challenge,

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because these prey animals have highly effective defence strategies.

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But what if a predator knew what its prey's defence strategy was?

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What if it used that actual strategy against that animal

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when it was hunting it?

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Well, there is one animal that's learned to do exactly that.

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And it lives out here.

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The killer whale.

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This marine mammal lives in a world of sound.

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WHALE VOCALISES

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Because visibility is limited underwater,

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killer whales use a series of sounds to communicate,

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navigate, and to hunt.

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And it's during a hunt where they use sound in a very sneaky way.

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WHALE VOCALISES

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Scientist Volker Deecke is an expert in killer whale acoustics.

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And he's recorded some astonishing underwater audio.

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I'm joining him in a specialist sound studio

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to hear his discoveries.

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WHALE CALLS

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-It's beautiful.

-It's amazing, isn't it?

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Yeah.

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WHALE CALLS

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This is a group of 50 animals tracking a whole school of herring.

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Herring live in huge groups.

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When threatened by predators,

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their defensive strategy is to shoal tightly together.

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The confusing, co-ordinated movements of the school

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make it harder for predators to single out and pick off individuals.

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Herring are perfect prey for killer whales.

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But how are they going to catch them?

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Volker has recorded something quite remarkable -

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a strange sound that killer whales only make

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whilst they're hunting herring.

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Now listen carefully.

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WHALE CLICKS

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WHALE CALLS

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That's amazing. So basically, there was a lot of clicking,

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and then a single loud whistle.

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That loud sound is what we call a herding call.

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WHALE CALLS

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The herding call is a very unusual sound for killer whales.

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First of all, it's a relatively low frequency sound,

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and the other thing is it's a very, very loud sound.

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For a fish, a low frequency sound at very high volume

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is extremely dangerous.

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That sound can become a weapon.

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WHALE CALLS

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Let me explain how it works.

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Look at this. Here, a glass is being exposed

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to a very loud frequency of sound.

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ELECTRICAL TONE

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And when you crank up the volume...

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something incredible happens.

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TONE INTENSIFIES

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You can see that glass flexing.

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GLASS SMASHES

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Brilliant.

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But of course, we're not implying

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that the whales are bursting the fish with sound.

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-No.

-Perhaps just making them wobble.

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We think that it's used to do something to the herring,

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to change the herring's behaviour.

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It seems that the gut-wrenching herding calls panic the herring

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and trigger their defence tactics.

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They school closely together.

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Other predators couldn't handle this.

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But this is exactly what the killer whales want.

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They've set a trap.

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With the fish in a tight ball, they have no room for manoeuvre.

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The killer whales deliver devastating tail-swipes

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with the force of an exploding grenade.

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And then the whales feast on the stunned fish.

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Sound here is being used as a deceptive weapon.

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These killer whales know that by producing that frequency of sound

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at that volume, they can modify the behaviour of the herring.

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Effectively, they can use their own defence behaviour against them,

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so the whales can feed more efficiently.

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That is pretty clever.

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But off the coast of Alaska, killer whales have a bigger challenge.

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Here, some of their main prey are seals and sea lions,

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which live along the rocky shores.

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But these animals are much more intelligent than herring,

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and they've got exceptional hearing.

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So they can detect any calls the killer whales make

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and then take evasive action.

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It would seem that the seals have the upper hand.

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But then...how can this happen?

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Volker's latest recording has the answer.

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Here we go.

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Volker recorded a pod of three killer whales tracking a seal.

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Now, listen carefully.

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SEAL SNORTS

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This is the sound of a male harbour seal -

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a vocal display that it uses to attract other females.

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So that's the seal. And the killer whale can hear that?

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They certainly can.

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The hunt is on,

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and Volker's recording reveals something extraordinary.

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And now I'm just going to increase the volume here.

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WATER RIPPLES

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-But there's no clicking.

-No clicking at all.

-And no whoops.

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No. This is a group of three animals,

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and they're doing all of this completely silently,

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with no calls, no echolocation, nothing at all.

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Because of course the seal would hear that.

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-They've gone into radio silence, basically.

-Absolutely.

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Mum is the word when it comes to hunting for these guys.

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SILENCE

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And only when they're within striking distance do they speed up.

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WATER RIPPLES

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And...

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bam!

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Hitting the seal and grabbing it.

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-That was it getting...?

-That's it.

-Wow.

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It's quite profound, isn't it?

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You know, the dissociation, just hearing the sound of this event,

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-that animal being killed.

-Mm-hm.

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It's gruesome, but can we hear it again?

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WATER RIPPLES

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THUMP!

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And that poor seal was trying to attract a female,

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and instead, it attracted its predator.

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So this, you see, is a form of acoustic camouflage.

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The killer whales are consciously being quiet,

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so that they can sneak up on their prey.

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The trick to the success is not making any noise at all.

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That's the clever bit.

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That's the devious bit.

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Across the world's oceans,

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killer whales and other large marine predators

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also use an artful visual ploy to help them hunt.

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Take the great white shark.

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They need stealth and surprise to launch an attack.

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The seas are vast. Great white sharks can't simply

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hang around waiting for prey to come to them.

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They've got to seek that prey out, they've got to actively go hunting.

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But underwater, in the open ocean, there is nowhere to hide.

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So how can a creature as large as a great white shark

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conceal itself whilst it's looking for that prey?

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Well, it seems they've come up with a pretty crafty solution.

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A shark's body colouration is entirely deliberate.

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Dark on top, light underneath - it's called countershading.

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Viewed from above, the dark skin of the shark's back

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blends eerily into the shadowy ocean depths.

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Seen from below, its pale underside

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matches the lighter water near the surface.

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For the illusion to really work, though,

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the shark has to disappear when it's viewed from the side,

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and this is where it gets really clever.

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Let's put countershading to the test.

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Here we have a sphere -

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uniform in colour, it's white, in fact.

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And over here, another sphere,

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but this one is painted dark grey on top

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and it's white underneath. It looks just like a shark.

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In the ocean, light from the sun always falls from above.

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So let's replicate that.

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Immediately, a shadow forms on the uniform sphere.

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In fact, it's the shadow that's cast by the top of that sphere itself.

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Look at it. It stands out a mile

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against that backdrop.

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The other sphere is very different.

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The top light falls on the grey,

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and it's balanced by the shadow that forms underneath.

0:27:230:27:27

Now, let's be honest - it doesn't disappear,

0:27:270:27:30

but it becomes much more two-dimensional, much flatter.

0:27:300:27:34

And if I were prey and this were predator,

0:27:340:27:37

it would be a lot more difficult to see.

0:27:370:27:39

That's the secret of countershading.

0:27:410:27:43

And that is the secret of the shark's success.

0:27:430:27:48

It's a devious design

0:27:500:27:52

that sharks have used to hunt their prey for millennia.

0:27:520:27:55

And they're not the only ones.

0:27:590:28:01

There's countershading in penguins.

0:28:050:28:08

Sailfish have it.

0:28:100:28:11

Even humpback whales.

0:28:120:28:15

It's stealthy.

0:28:200:28:21

It's smart.

0:28:210:28:23

And it works.

0:28:250:28:27

Deceptive strategies like these

0:28:330:28:35

give predators the edge in a hunt.

0:28:350:28:39

But other animals have a very different problem.

0:28:420:28:45

To get the food they need to survive,

0:28:450:28:48

they have to compete with others of their own species.

0:28:480:28:52

And that's when things can get very sneaky indeed.

0:28:530:28:59

Autumn, and change is in the air.

0:29:020:29:05

This time of year is also critical,

0:29:080:29:11

as animals are preparing for the winter.

0:29:110:29:13

And one species' survival is inextricably linked to these -

0:29:130:29:18

conkers, sweet chestnuts, hazelnuts and acorns,

0:29:180:29:23

because at the moment, they're quite literally going nuts for nuts.

0:29:230:29:27

Meet the grey squirrel.

0:29:420:29:45

This little nut is packed full of energy.

0:29:480:29:51

Carbohydrate, fat, protein -

0:29:510:29:54

all in all, there's somewhere between five and ten calories in here,

0:29:540:29:58

which means that a cold, hungry squirrel

0:29:580:30:01

will need about 20 of these to get through a winter's day.

0:30:010:30:06

It's a very valuable commodity.

0:30:060:30:09

So if you come along to a park where squirrels are used to people,

0:30:090:30:14

you might be able to tempt them to take it out of your hand.

0:30:140:30:18

Come on, then. Come on.

0:30:240:30:26

Come on!

0:30:270:30:29

Come on.

0:30:300:30:31

HE CHUCKLES

0:30:390:30:41

Magic.

0:30:460:30:48

But that nut is not for eating today.

0:30:480:30:52

Squirrels will cache around 3,000 nuts in different locations

0:30:520:30:57

for the lean times ahead.

0:30:570:31:00

And incredibly, they'll remember

0:31:000:31:03

where up to 90% of them were buried.

0:31:030:31:07

There's no denying that that is remarkable.

0:31:090:31:12

But there's a problem, here in the park.

0:31:120:31:16

You see, thieves are lurking.

0:31:160:31:20

After all, why bother to find your own nuts and then hide them,

0:31:200:31:26

when you could nick someone else's?

0:31:260:31:29

Whilst our squirrel buries nuts essential for his survival,

0:31:290:31:34

he's being watched.

0:31:340:31:36

Nut safely stored, the squirrel departs the scene.

0:31:420:31:45

And the onlooker moves in for the steal.

0:31:520:31:56

Undeniably devious behaviour.

0:32:000:32:04

So is there anything that these nut-hoarding squirrels can do

0:32:040:32:08

to throw the thieves off of the scent?

0:32:080:32:11

Well, it turns out that there is,

0:32:120:32:16

because they've got some sneaky strategies of their own.

0:32:160:32:19

Grey squirrels will dig up nuts they've already buried

0:32:230:32:27

and then rebury them in a different place,

0:32:270:32:31

throwing thieves off the scent.

0:32:310:32:35

But I've got to tell you, it gets better,

0:32:380:32:40

because there is one situation where our squirrel

0:32:400:32:43

exhibits true deceptive genius.

0:32:430:32:47

And it's something that will be familiar to anyone

0:32:470:32:50

who's been in the audience with a street magician.

0:32:500:32:53

You know the score.

0:32:550:32:56

The ball goes into one cup.

0:32:570:33:00

The other two are empty.

0:33:020:33:04

The trick is to work out where the ball goes.

0:33:130:33:17

The key to fooling his audience

0:33:210:33:24

is timing and misdirection.

0:33:240:33:28

Thanks very much, ladies and gentlemen.

0:33:300:33:33

Just like the magician,

0:33:340:33:35

the grey squirrel has mastered sleight of hand,

0:33:350:33:38

so now it's time to see deception in action.

0:33:380:33:42

OK. Here's our squirrel -

0:33:440:33:47

nut in mouth, poised to bury.

0:33:470:33:50

And here is the thief.

0:33:550:33:57

He moves closer, for a better view.

0:34:020:34:05

But look!

0:34:080:34:09

Does our squirrel know that he's being watched?

0:34:090:34:15

Either way, he carries on.

0:34:210:34:23

From the thief's point of view,

0:34:230:34:25

these are the actions of a squirrel burying a nut.

0:34:250:34:29

But wait!

0:34:360:34:37

It turns out that our squirrel has been faking it!

0:34:370:34:41

When he spotted the thief, he opted for plan B - misdirection.

0:34:420:34:49

The thief has only seen what our squirrel wanted him to see.

0:34:500:34:54

He carried on digging,

0:34:560:34:58

but he didn't deposit the nut -

0:34:580:35:01

the ultimate sleight of hand.

0:35:010:35:04

Oblivious to the trick,

0:35:100:35:11

the thief heads towards the freshly dug hole, only to find...

0:35:110:35:17

a freshly dug hole.

0:35:170:35:19

Foiled!

0:35:210:35:22

And with the coast clear,

0:35:260:35:28

our squirrel is free to bury his nut in a new location,

0:35:280:35:32

known only to him.

0:35:320:35:35

For these squirrels, this park is a hotbed of theft and deception,

0:35:460:35:52

and they're pulling every trick they can out of the book

0:35:520:35:57

to find their nuts and then hide them.

0:35:570:36:00

But here is the really interesting thing.

0:36:000:36:04

They're not fooling another species -

0:36:040:36:07

they're tricking one another.

0:36:070:36:09

This is a case of deception and then counter-deception

0:36:090:36:13

evolving at the same time.

0:36:130:36:16

And the strategies that the hoarder and the pilferer have come up with

0:36:160:36:21

make these little rodents

0:36:210:36:23

one of THE most successful mammals on our planet.

0:36:230:36:28

So that is not nuts.

0:36:280:36:31

That's pure success.

0:36:310:36:34

Sleight of hand helps sneaky squirrels get one up on each other.

0:36:380:36:43

But there is one animal that uses devious and far darker tactics

0:36:450:36:52

on the most vulnerable of their own kind.

0:36:520:36:55

A millionaires' playground off the coast of California.

0:36:570:37:01

And a male sea otter is cruising the harbour.

0:37:030:37:07

To get his next meal, he's got a really despicable plan.

0:37:120:37:18

It involves a female sea otter and her pup.

0:37:220:37:27

The pup is just old enough to accompany her mother

0:37:290:37:32

on foraging trips,

0:37:320:37:34

giving the male an opportunity.

0:37:340:37:37

He picks the perfect moment.

0:37:480:37:50

Whilst the female is fishing,

0:37:520:37:56

her precious pup is all alone at the surface,

0:37:560:38:01

and vulnerable.

0:38:010:38:02

When the mother surfaces...

0:38:080:38:10

SHE SQUEAKS

0:38:100:38:12

..she hears the cries of her youngster.

0:38:120:38:15

SQUEAKING

0:38:150:38:17

CALL-AND-RESPONSE SQUEAKING

0:38:170:38:20

Our cunning male has kidnapped the baby.

0:38:210:38:26

He knows the female will come to the rescue -

0:38:290:38:32

and the ransom is always the same.

0:38:320:38:36

In an underwater exchange,

0:38:420:38:44

the female gives up the food she's just found to the male,

0:38:440:38:49

and the pup is released unharmed.

0:38:490:38:52

This is called "hostage behaviour", and it's surprisingly common.

0:38:530:38:58

A deliberate manipulation of female otters,

0:38:580:39:02

all to get food.

0:39:020:39:05

Theft is sneaky, but ultimately, it's a successful strategy.

0:39:100:39:15

But just how far are animals prepared to go?

0:39:170:39:21

Now, it's one thing for animals to deceive,

0:39:290:39:32

cheat and steal from one another to get themselves a decent meal,

0:39:320:39:36

but I've heard about something else that might be even more remarkable.

0:39:360:39:40

Oh, yes - they're cheating us humans.

0:39:400:39:44

I give you the world's ultimate cheeky monkey...

0:39:440:39:47

CLICKS

0:39:470:39:49

..the long-tailed macaque.

0:39:490:39:51

The Temple of Uluwatu...

0:40:040:40:05

..home to a remarkable troop of these monkeys.

0:40:070:40:10

With over 300 macaques here,

0:40:120:40:16

they need a lot of food.

0:40:160:40:19

But temple offerings and tourist scraps

0:40:190:40:22

just aren't enough for these monkey mobsters.

0:40:220:40:25

No, they've got their eyes on far more nutritious fare,

0:40:280:40:33

and what they're doing to get it is downright criminal.

0:40:330:40:37

There are plenty of monkeys about.

0:40:440:40:46

But to see what they're getting up to, I need to blend in.

0:40:460:40:49

I need to disguise myself...

0:40:490:40:52

as a tourist.

0:40:520:40:54

My camera is absolutely de rigueur.

0:40:540:40:56

Sunglasses.

0:40:560:40:59

What about this?

0:40:590:41:00

Everyone seems to be using these things.

0:41:000:41:03

Just not me, though.

0:41:030:41:05

Think I'll just stick to the old mobile phone.

0:41:050:41:08

HE SIGHS

0:41:120:41:13

No, going too far.

0:41:130:41:15

'Attention to the visitors,

0:41:170:41:19

'please be careful in bringing sunglasses,

0:41:190:41:22

'hats, jewellery and other valuables that can be taken by the monkeys.

0:41:220:41:27

'Thank you for your attention.'

0:41:290:41:31

These monkeys are expert thieves.

0:41:360:41:39

Here we go, here we go, here we go.

0:41:420:41:44

Oh, and there you go.

0:41:440:41:45

Brazen, audacious,

0:41:470:41:49

they've worked out exactly how to get what they want.

0:41:490:41:53

Oh, dear, oh, dear.

0:42:060:42:07

It's like taking candy from children, it really is.

0:42:070:42:10

You're a bit of a gangster, aren't you?

0:42:150:42:18

You fancy yourself as a bit of a...

0:42:180:42:19

sunglasses hit man?

0:42:190:42:21

Look at him, look! Here he goes. Here he goes!

0:42:260:42:29

I've been undercover for about an hour.

0:42:410:42:43

The monkeys have been stealing all sorts of stuff, flip-flops,

0:42:430:42:46

sunglasses... I managed to hang on to my own. People's hats.

0:42:460:42:50

I'm told they even nick their iPhones.

0:42:500:42:53

The interesting thing is, though, they're taking all of this stuff

0:42:530:42:56

which is valuable to us humans, but they're not taking any food.

0:42:560:43:00

MONKEY SCREECHES

0:43:050:43:08

Well, obviously I spoke too soon about MY sunglasses.

0:43:080:43:11

But this daylight robbery is still all about food,

0:43:140:43:19

just not in the way that you'd ever expect.

0:43:190:43:22

So, to understand what they're up to,

0:43:270:43:29

I am giving them an irresistible opportunity.

0:43:290:43:32

Oh! PEOPLE GASP

0:43:380:43:40

You see, these monkeys want something in return for my phone.

0:43:420:43:48

They're notorious for one thing...

0:43:480:43:52

holding people to ransom.

0:43:520:43:54

OK, he's got my phone.

0:43:540:43:56

And there is a system by which I may be able to do this - bartering.

0:43:560:44:00

OK, that's what it thinks of peanuts.

0:44:040:44:06

Let's try something a little bit more valuable to it.

0:44:060:44:09

Maybe a bag of bananas?

0:44:090:44:11

It doesn't seem particularly interested in the bananas either,

0:44:110:44:15

does he? The last prize that I have is this...

0:44:150:44:17

protein in the form of eggs.

0:44:170:44:19

If anything is going to get my phone back, it's this.

0:44:190:44:23

Yes! HE LAUGHS

0:44:320:44:35

Ah!

0:44:350:44:37

HE SIGHS WITH RELIEF

0:44:370:44:39

Yes, yes, yes!

0:44:410:44:42

This is absolutely incredible.

0:44:440:44:46

You see, these monkeys are stealing the valuables that they know

0:44:460:44:51

that we want back.

0:44:510:44:53

And they're using them to barter with us for food.

0:44:530:44:56

They won't give up their loot,

0:45:010:45:03

not until they're offered the specific food that they want,

0:45:030:45:07

often the fare with the highest nutritional value.

0:45:070:45:11

As negotiation and bartering are so extraordinary in the animal world,

0:45:130:45:18

Jean-Baptiste and his research team

0:45:180:45:20

are studying how this complex deception develops.

0:45:200:45:24

But this bartering is very, very rare. It occurs only here,

0:45:240:45:27

perhaps another couple of places on Earth.

0:45:270:45:29

Why here and nowhere else?

0:45:290:45:31

Well, the main hypothesis with this group is that it might have

0:45:310:45:35

emerged from an inventor.

0:45:350:45:38

-That's usually...

-One animal?

-Probably.

0:45:380:45:40

Probably, that's how behavioural traditions typically emerge.

0:45:400:45:44

It's obviously nutritionally beneficial,

0:45:440:45:47

they get really something out of it.

0:45:470:45:49

So, in this particular population, it spread.

0:45:490:45:53

So young monkeys here are able to learn by looking at their elders,

0:45:530:45:56

particularly the older males, which are the most proficient at this?

0:45:560:45:59

With adult males, the entire procedure becomes very fast,

0:45:590:46:03

very successful on both sides

0:46:030:46:05

and, of course, the monkey gets its favourite food and the token,

0:46:050:46:10

the item, is returned generally in good condition, but not always.

0:46:100:46:14

Not always.

0:46:140:46:16

Yeah, one of them, I have to say, ate my sunglasses, it chewed them up.

0:46:160:46:20

But that was a youngster and it took them off my head

0:46:240:46:26

without me even noticing.

0:46:260:46:28

So very adept at stealing, but then it dashed up a tree and ate them.

0:46:280:46:31

So it hadn't learned to barter yet.

0:46:310:46:33

It takes time and practice to become a good player

0:46:330:46:37

at this particular game, definitely.

0:46:370:46:39

Monkeys are intelligent creatures.

0:46:410:46:44

Like us, they have the ability to learn,

0:46:440:46:46

to adapt their feeding behaviours to get the best from any situation.

0:46:460:46:51

And they can outwit us in a flash...

0:46:530:46:55

even some of us who should know better.

0:46:550:46:58

Look at this one, look, look.

0:47:030:47:05

This one's really got something valuable this time. He's got a purse.

0:47:050:47:09

Oh, no. It's your purse? It's your purse?!

0:47:100:47:14

I didn't realise it was one of our team's purse.

0:47:170:47:19

How could you lose that? You know what they're up to!

0:47:190:47:21

They've got it, they've got it, they've got the purse.

0:47:210:47:25

And the money!

0:47:250:47:27

Look at that.

0:47:300:47:31

That's the price of carelessness at the Temple.

0:47:330:47:37

-It'll be in amongst these.

-I hope so.

0:47:370:47:39

When it comes to getting food,

0:47:420:47:44

these monkeys have got it all sewn up.

0:47:440:47:48

Superb. Absolutely superb.

0:47:500:47:53

This has to be one of the most fascinating

0:47:530:47:56

and complex pieces of deceitful behaviour that we've seen.

0:47:560:48:00

Oi!

0:48:000:48:02

And you know what I really like about it?

0:48:020:48:04

For once, these cheeky monkeys have turned the tables on us humans.

0:48:040:48:09

It's us that's being held to ransom.

0:48:090:48:12

Of course, we love their anarchic behaviour,

0:48:130:48:15

even, EVEN, when we're the victims ourselves.

0:48:150:48:19

It really is quite wonderful.

0:48:190:48:21

In the case of this remarkable monkey heist,

0:48:280:48:31

we are willing to be part of the deception.

0:48:310:48:34

Yet most animals wouldn't tolerate being tricked

0:48:370:48:40

time and time again for their food.

0:48:400:48:43

That's certainly a problem that animals that practise deception face,

0:48:460:48:50

because if they want their con to work in the long-term,

0:48:500:48:53

they need to control it, to regulate it, to ensure that the victim

0:48:530:48:58

is blissfully unaware that it's ever been had.

0:48:580:49:02

Sounds simple, but it's not.

0:49:020:49:04

It's something that is very, very difficult to do.

0:49:040:49:07

But there is one animal that has perfected the art.

0:49:070:49:11

Here in South Africa, there's an animal that uses

0:49:230:49:26

the most extraordinary trick that I've ever heard of

0:49:260:49:30

to get itself a meal.

0:49:300:49:32

I give you the one and the only drongo.

0:49:320:49:36

The ultimate hustler in the hunger games.

0:49:380:49:41

He's one brazen bird.

0:49:410:49:44

Now, it might look warm and sunny here,

0:49:480:49:50

but it's winter and times are tough.

0:49:500:49:53

The flying insects that the drongo usually eats

0:49:550:49:58

just aren't around in these low temperatures.

0:49:580:50:01

The only grubs and insects here live underground.

0:50:030:50:06

And other animals are far better equipped to dig them up

0:50:080:50:10

than our drongo.

0:50:100:50:12

So how is he going to get this food?

0:50:150:50:18

This exquisite bird has evolved a very devious strategy

0:50:210:50:26

to deal with just this problem.

0:50:260:50:28

You see, its very survival rests on a knife edge,

0:50:280:50:33

so it's turned to a life of crime.

0:50:330:50:35

And although it may not look it, the drongo here...

0:50:370:50:41

..is a con artist of the highest order.

0:50:430:50:45

In the world of the con, an elaborate hustle plays out

0:50:470:50:52

between the player...

0:50:520:50:53

..the drongo...

0:50:550:50:56

..and the victim of the con, the mark.

0:50:580:51:01

And the mark, in this case, is another species of bird,

0:51:030:51:07

a sociable weaver.

0:51:070:51:09

And they feed on the ground, using their large powerful bills

0:51:090:51:13

to dig up the food.

0:51:130:51:15

But out in the open, they are vulnerable to predators.

0:51:150:51:18

And that's where the drongo comes in.

0:51:240:51:28

So what is the drongo offering the weaver?

0:51:280:51:32

It's offering it something that is the singularly most important

0:51:320:51:36

thing for a small bird like this...

0:51:360:51:39

protection.

0:51:390:51:41

When trouble looms, the drongo lets the weavers know about it.

0:51:500:51:55

DRONGO CALLS

0:51:550:51:57

..with an alarm call.

0:51:570:51:58

When the danger is gone...

0:52:010:52:03

DRONGO WHISTLES

0:52:050:52:07

..he gives them an all-clear call.

0:52:070:52:09

It looks to me as if the first stage of the con has been established,

0:52:190:52:24

in the sense that they are clearly trusting the drongo's call.

0:52:240:52:28

So far, so good.

0:52:300:52:32

But now let's see how this hustle actually plays out.

0:52:340:52:37

With the drongo on lookout duty, the weavers spend less time

0:52:420:52:46

worrying about predators and more time foraging...

0:52:460:52:49

..digging up that vital food.

0:52:510:52:53

DRONGO CALLS

0:53:010:53:03

The drongo's alarm call...

0:53:030:53:05

and that means danger.

0:53:050:53:07

But all is not what it seems.

0:53:090:53:11

The alarm call was, in fact, a fake.

0:53:130:53:17

There is no predator.

0:53:170:53:19

DRONGO CALLS

0:53:190:53:20

And with the weavers gone, the drongo eats all the food they just dug up.

0:53:390:53:44

And then he gives the all-clear call.

0:53:550:53:58

DRONGO WHISTLES

0:53:580:54:00

Within minutes,

0:54:040:54:05

the drongo is back on duty and the weavers are none the wiser.

0:54:050:54:10

Now, he's got to keep his side of the bargain.

0:54:140:54:16

He's got to protect them from real predators...

0:54:160:54:19

..or they'll get wise to his protection racket.

0:54:210:54:23

But, in fact, the drongos' con gets much more sophisticated than this.

0:54:250:54:30

The drongos' con routine is actually so effective that they've learned

0:54:360:54:41

to employ it upon many other species of animal, including these guys...

0:54:410:54:46

..meerkats.

0:54:480:54:50

They're much smarter than the weavers,

0:54:540:54:57

so the drongo needs to raise his game.

0:54:570:54:59

Meerkats have their own lookout.

0:55:050:55:07

It's one that they entrust with their lives.

0:55:070:55:09

Yet, if there are predators about,

0:55:120:55:14

a second pair of eyes is always very useful.

0:55:140:55:17

And the drongo can exploit this.

0:55:170:55:19

That food has caught his eye.

0:55:210:55:23

DRONGO CALLS

0:55:230:55:25

He makes a fake alarm call.

0:55:250:55:28

It should send them running...

0:55:300:55:32

MEERKAT BARKS

0:55:330:55:35

But no, the meerkats aren't fooled that easily.

0:55:350:55:40

He needs another plan.

0:55:400:55:42

And what the drongo does now is really sneaky.

0:55:490:55:53

BARKING

0:55:590:56:01

From out of the blue, it's the sound of a meerkat alarm call.

0:56:010:56:06

But that was no meerkat.

0:56:070:56:10

DRONGO MIMICS A MEERKAT

0:56:110:56:13

BARKING

0:56:130:56:15

No, that was our drongo.

0:56:150:56:17

The sneaky devil has switched tactics

0:56:230:56:25

and, by mimicking the meerkats' own alarm call,

0:56:250:56:28

he tricks them completely

0:56:280:56:30

and gets all the food for himself.

0:56:300:56:34

The drongo is the ultimate con artist.

0:56:380:56:42

Depending on the situation,

0:56:420:56:44

he decides which of his repertoire of fake calls to use.

0:56:440:56:49

And this means his targets never get wise to his tricks.

0:56:490:56:54

When it comes to finding food,

0:56:550:56:58

this little bird has pulled off the most phenomenal con,

0:56:580:57:02

to the extent that, if it thinks for just a moment that the mark is going

0:57:020:57:06

to figure out the trick, it changes it to guarantee success.

0:57:060:57:11

That, you've got to admit, is remarkable

0:57:110:57:15

and surely makes this one of the most devious animals on our planet.

0:57:150:57:20

And I, for one, have developed a real admiration for the drongo.

0:57:200:57:24

What a bird...what a bird!

0:57:240:57:27

So, we've met the extraordinary animals that will lie,

0:57:320:57:36

cheat and steal their way to their next meal...

0:57:360:57:39

..sneaky strategies that ensure that they'll live to see another day.

0:57:420:57:48

Next time, sex and lies in the mating game.

0:57:580:58:01

We meet the animals tricking others to win a mate

0:58:040:58:08

and then raise their young,

0:58:080:58:11

the seductive sneaks, the cheats, the love rats.

0:58:110:58:15

These animals definitely don't play by the rules.

0:58:150:58:19

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