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[walruses baying loudly outside]
-The Night of the Living Dead. -Yeah.
Zombie attack. We're just trying to zombie-proof our home.
[baying continues]
Yeah, you look over the top,
you can see the zombie eyes.
You can see them.
They're right there.
They're massive.
Their head's about that big.
[baying continues]
Let the battle commence.
Okay, I can see the bait.
[David Attenborough] The team have come to the remote islands of French Polynesia
in the South Pacific.
Here, sharks are fully protected.
This is one of the few places left
where they still thrive in the numbers they once did.
Good to go.
Divers, divers, this is topside. This is topside.
Do you copy?
[diver] Yeah, reading you loud and clear. Can you hear me?
I can hear you loud and clear, loud and clear, over.
Enjoy your dive, and let's go find some sharks.
[diver chuckles] Fingers crossed.
Finding the sharks isn't a problem.
[diver 1] Okay, here they are.
Wow.
[diver 2] Plenty of sharks.
They're gathered in the main channel,
hanging in the tidal current.
But working against such a strong current
is tough going for divers.
To film the sharks hunting at night, the crew need powerful underwater lights.
They've mounted them onto a scooter to help with the current.
That's a motor underwater scooter, DPV.
Diver propulsion vehicle.
Right here are the lights.
They are attached to the front.
On this side back here you have the propeller.
It's like a torpedo with lights.
The rig is designed to light a large enough area of reef
to capture the full scale of the spectacle.
It's kind of spooky...
to see shark eyes reflecting.
The lights are working well,
so the crew descend towards the channel.
Unconcerned by the lights,
the sharks begin to hunt.
[diver 1] Wow. They're all here, right?
The divers approach cautiously,
keeping their distance from the sharks.
[diver 2] Plenty of sharks, and this is a different mood to daytime.
Know what? These guys are switched on, they're active.
Be careful in there.
Just as the action hots up,
the lighting rig fails.
Back to the boat.
There are few species more elusive than the Siberian tiger,
and the Our Planet team has come up
with a remarkable plan to film them.
[man] We're gonna be going into the hides
with the prospect of doing approximately...
800 hours...
in a small, wooden box...
by the end of the shoot.
To have any chance of filming the tiger,
they'll have to live inside the heart of tiger territory themselves.
They're using specially built hides
just big enough for one person to live in.
So it's a bit like caravanning, um,
but sort of bizarre winter caravanning
where you're looking for a place with good views of tigers.
The hides had to be placed precisely
to afford the best view.
[men speaking Russian]
But perhaps some are just a little too precise.
-[man speaking Russian] -Yes?
Okay.
[man speaking Russian]
I don't know, it's kind of like you've just moved into a new house,
and you don't know where anything is.
But the trouble is this house is...
very, very small.
And you've got a lot of stuff here.
The camera team will live inside these hides
over the next two winters.
-All right, see you later. Bye, Paul. -Cheers. Okay, bye.
Bye.
For six days at a time, they will never even open the door.
No, I'm not staying in there.
Siberian tigers have the largest territories of any cat,
and they are notoriously shy.
So by living in these hides,
they hope to stand a chance of being there at the right moment
without disturbing the tiger.
While the others sit patiently in their box,
Kieran is using the knowledge of local scientists
to build a network of camera traps
across the tiger landscape.
The least comfortable thing I've ever done.
The slightest movement will trigger these cameras,
so he must return regularly to check his catch.
Initial signs are not very promising.
I think it looks like more of nothing.
Damn.
An Our Planet team are in the Canadian Arctic.
They've heard reports that at a few spots along the coast,
and for just a couple of weeks a year,
polar bears have learned to do something extraordinary.
At their base camp on the Barnoin River in Quebec,
bear guide Alain shows them some tantalizing footage
from the previous year.
Forced ashore by the summer ice melt,
the bears here have learned to catch fish from the rivers.
This brief feast provides them with valuable energy
in the increasingly long ice-free season.
There's lots of fish over there,
and something we even see the wolf fishing with them.
Good, expectations are pretty low, actually.
Yes, exactly, yeah.
But there are only a few rivers shallow enough
for the bears to catch migrating fish.
These are over a hundred kilometers further north,
and for the crew, only accessible by small float plane.
If you tell me we're gonna have good weather,
your chance of seeing polar bear catching char in the next two weeks
are just 90...
95.
-Perfect. -No big deal.
Not phased by a little drizzle,
the team test their kit.
They're hoping to capture the first ever underwater footage
of polar bears fishing
and have built a special camera trap for the job.
Yeah.
Horizon good?
No, actually, that's slightly off, I think.
Once it's working...
they get the rest of their cameras ready.
All they need to do now
is to get them in front of a polar bear.
Extensive quarter-mile to two-mile fog drizzle,
so...
non-fit weather for flying.
I mean, you're gonna fly maybe one mile
and you run into a fog bank,
and...
you've got no visibility, you're stuck.
-Another day in camp. -Yeah.
We were thinking weighing ourselves with all our kit. We started yesterday.
Thirty-two pounds.
The drone weighed, done.
247, now there's 206.
Oh dear, this is not good.
I'm over weight capacity and we're maxing out this bush plane,
and it looks like since I am the fattest
I'm getting left behind, and I'm not happy about it.
Okay, let's have a look at this. What are we at?
We're at 226.
-What? -I know!
Too many pancakes have been eaten.
My slight concern is we've got another week.
Absolutely.
Weaher dictates everything that we do, every day.
In French Polynesia, good news.
The lighting rig is back in action.
To capture the ultimate sequence,
the crew need to get right in amongst the sharks,
and for that they need extra protection:
bite-proof chain mail suits.
If you don't use it,
you have a big chance, I think, to be bitten.
Everything is right here, from a safety point of view.
So it's no fear, it's just...
intensity, excitement, exhilaration.
Tonight the sharks are gathering in even greater numbers.
[Anderson] Oh, that is a lot of sharks.
Using all his experience,
Doug carefully judges the moment to move closer.
They look all right tonight. I'm gonna get in there.
By remaining calm and moving slowly,
the cameramen get right in the middle
of the hunting sharks...
[Anderson] That's a lot of sharks.
...and managed to film hundreds of top predators
in a feeding frenzy...
without becoming part of it.
[Anderson] Really great action.
Yep, wonderful.
You're really in the middle of a predation scene,
and you feel very small at the end.
Today such incredible scenes only occur
in places like French Polynesia where sharks are protected.
And we could have so many sharks hunting together
and being so close to each other,
it's like a river flow.
It's really special.
I really like-- I'm enjoying this spot.
These top predators play a vital role
in the health of our coastal seas.
It's crucial that we protect sharks in all our oceans
so they can thrive once again.
A month into filming the tigers,
and the unremarkable days are passing slowly.
Not much else to do apart from give you a tour of the hide.
So let's be quick about it and very quiet.
So, here we go.
This is my big knife,
thermometer,
box of nuts,
satellite communication device,
tea, coffee,
toilet paper,
flare for, uh, frightening the tiger off,
if it decides to eat me.
Fat chance.
These are down booties to keep my feet warm,
kettle, cooker,
all my gas stuff,
bottle for peeing in.
That's the toilet there.
I sit on that about once a day just to give myself a treat.
Even I'm bored now.
Two months in, and Kieran's routine checks are well under way.
Well, it seems like the camera is still working.
There's a lot of footage on this...
card.
Question is, footage of what?
Lots of tiger food.
But still no tiger.
Cool.
We've got a... lynx.
First time we've got something like that here.
You know, it's not a tiger but it's a pretty cool animal.
But not what they're looking for.
That evening, though, Paul receives a visitor.
Well, I appear to have been surrounded by maybe two tigers.
I don't know if you can still hear that, but it's still...
still roaring out up the track,
-and it seems to be... -[tiger roaring]
...that there's another tiger also calling back.
So...
-I'm clearly in the right place. -[tiger yowling]
I just have to hope that they're still around by morning.
That is an incredible sound.
Sadly, the two tigers are not still around the following morning.
Wow, it's beautiful.
But the scientists' camera traps confirm Paul's nighttime visitors.
[man] No snoring tonight, Paul.
[Paul] No, well, draw them in.
-Stunning, eh? I like to see those. -Yeah, it's great.
Fingers crossed.
So we should see this... this tiger.
Frustratingly close, and yet still not filmable.
It's their second year of filming,
and the camera trap team finds some promising signs
on their way to the ridge.
The-- Stop.
It's very fresh.
And it's heading in the right direction.
Kind of kept coming down the trail a bit and then it turns up into this area
where there's no snow.
But it looks like the tiger continued up the ridge to where our camera traps are.
By now the team has learned through trial and error
the most likely tiger routes through the forest.
But Kieran knows through experience
that the cats are still highly sensitive to any signs of humans in their domain.
To succeed, one needs a lots of luck.
[chuckles]
[quietly] Yes!
Finally, the camera traps are beginning to pay off.
Oh, man, I can't believe it.
This is, like-- this is two years of work.
Like two years of work for, like,
just minutes of footage,
and, uh...
you see a shot like this and it's just all worth it.
I mean, it's like the perfect setting, this ridge,
where you've got the mountains in the background, you've got nice light,
and flare going on in the lens, you have this incredible animal...
Just, I don't know, I mean, it's...
Yeah, it's incredible.
There is no guarantee of success in hide work.
A tiger must present itself to you,
which makes the two winters endured by the hide teams
a remarkable feat of determination.
Yet thanks to the collective efforts of all involved,
we now have just a few precious images
of the remaining Siberian tigers on our planet.
Let the battle commence.
Working in a hot, steamy, mosquito-infested jungle
is testing for anyone.
It went deep there.
That's pretty deep. I think that's pretty deep.
That's what we call a hole.
But from a filming perspective,
this particular patch of rain forest
really is hell.
This is ridiculous. This is ridiculous.
But for those willing to take on the swamp,
the Suaq Reserve in Sumatra
is home to some unique animal behavior.
The orangutans that live here have learned to make and use tools,
the only wild members of their species known to do so.
Truly pristine orangutan habitat is not easy to find.
And after three exhausting days of travel,
they get their first taste of the challenges ahead.
It sort of feels as if the whole forest floor
is knitted together.
Sometimes I think I can pick up a vine here.
If I gave it a yank, somebody would trip up, you know, 50 meters that way.
One of the things you see everywhere are these roots,
these aerial root.
They're like croquet hoops, and they are literally all over this forest.
So you're walking along,
get your foot caught in one of those, and you're on your face pretty quickly.
It's not even 6:30 and I'm completely soaked.
All fun.
All part of humor of the wood.
You all right?
The orangutans spend all of their time up in the canopy,
never coming to the ground, and are constantly on the move.
So the big problem will be keeping up with them...
and getting a clean shot through all the foliage.
Oblivious of the struggles going on down below,
the orangutans are in their element.
We've been charging through the understory
trying to get shots of an orang with her baby,
and she always seems to be ten seconds in front of us.
I mean, we're always playing with seconds.
You set up the camera, you've got a few seconds to get the camera ready,
focused, fired,
but in that time, very often she's just moved off,
so you get nothing.
Nothing.
It's pretty much impossible.
Well, not impossible, surely.
Shall we just call it difficult?
Difficult.
Very difficult.
Matt, I've got an important question for you.
Yeah, what's the important question, Huw?
[Huw] So what do you think our shot per setup ratio is?
Twenty-five to one.
[Huw] So 25 times--
Twenty-five times camera on, camera off--
Hauling the camera and tripod through the jungle.
Hauling, yeah,
scratching shins...
going up to my waist in water.
[Huw] After all that, we end up with just--
Nothing. We end up with just nothing.
As the days turn to weeks...
jungle living is beginning to take its toll on Matt,
and he's forced to take some unscheduled time off.
It's an enforced break.
I've got this...
It's a plant allergy, it's an allergy to a plant like a poison ivy
or a poison oak.
And unfortunately, it's hit the whole entire back of my legs.
I'm trying to give it some sun to try and dry it out out.
I'm not really one for sunbathing, but, you know...
certain situations demand it, and this is one of them.
Finally, we have the weather to go and film polar bears.
We've been sitting here, seems like forever, maybe ten days.
But...
today's the day.
At last, the rain has let up enough for the team to head north.
Up in the air for the first time,
it becomes clear that all this rain has had an impact.
There's much more water everywhere than normal.
Some in that area, maybe.
[woman] Bear to the left. Bear to the left.
Finally the crew spot a bear.
They make their approach on foot,
hoping at last to film their sequence.
But as they get closer,
they see all is not as it should be.
Though there are bears here, there are no signs of fishing.
[bear snarls]
It seems that all of this rain has filled the rivers
to levels much higher than normal,
allowing the fish to run straight upstream to the lakes
without becoming trapped in pools along the way.
Perhaps this is why the bears aren't fishing.
Underwater, the team's fears are confirmed.
At this time of year, the river should be crammed full of fish.
But there's nothing here for the bears to eat.
The team must finally admit that they've been defeated by the weather,
and return home empty-handed.
The whole point of our freshwater film is to demonstrate how important it is
that the right amount of water hits these systems at the right time.
So this kind of demonstrates that perfectly
in that the wrong amount of water has hit the system
and the behavior that we wanted to film can't happen.
It's good for the fish but obviously bad for the bears and bad for us.
We don't have a sequence, I think, for the simple reason
that the water levels are too high.
The fish aren't trapped, the bears can't feed.
Um, we can't film what's not happening.
Very frustrating. I think everybody feels like we failed somehow.
But it's nature. You don't win them all with nature.
It's been going on here for 20 years for Alain, but this year, no.
Weather over the years in the Arctic has just been getting really weird,
and this summer has just been the worse weather in the last 15 years.
It just basically rained all summer, you know, cloudy,
high water levels so the fish weren't able to get up to the...
were able to get up to the lakes too quickly
and the bears aren't able to fish.
So it's...
weird environmental climate change factors that are...
really hitting the Arctic hard and...
this is a classic example of it.
As the climate changes, the planet's weather
and the flow of its freshwater
are becoming much harder to predict.
For a film crew, this is frustrating,
but for wildlife, this rapidly changing world
now threatens their very survival.
In Sumatra, the weight of expectation is still on Matt's shoulders.
He must press on with the search to find orangutans using tools.
Progress has been painfully slow so far,
but often, a month-long shoot can boil down
to just a few minutes of action.
Huw and Matt are hanging in there,
knowing their luck can change in an instant.
Ah, good, good.
Yeah, good.
[leaves rustling]
Whenever you hear that chucking noise...
[clicks tongue]
...that's them eating ants.
So you can hear it from some distance.
[orangutan clicking tongue]
Orangutans often use tools when foraging for ants.
This could be the moment the crew have been waiting for.
Only through a small window in the foliage,
they catch their first glimpse of what they came for.
A female orangutan is using a stick tool
to dig out ants from their nest.
Tool use by animals is extremely rare,
even amongst our closest relatives.
This is a groundbreaking moment for the team.
[Matt] It's an incredible thing to see and witness.
I'm pretty blown away by the fact that we've actually got this, you know?
It's been a slog, but it's been worth it.
The swampy conditions that made life very difficult for the crew
are also the very thing that has protected this small patch of rain forest
from exploitation.
Today, this area supports the highest density
of Sumatran orangutans anywhere in the world,
and it's thought to be the only viable population that's left.
In just a few decades,
well over 50% of Sumatra's rain forest has been lost.
What remains could be gone
within the lifetime of these individuals.
The Store Glacier in Greenland,
the location of Our Planet's most nerve-wracking shoot...
The ice face stands 100 meters above the ocean's surface
and extends 400 meters below it.
In summer, skyscraper-size blocks break off,
and all that submerged ice comes racing to the surface.
In the three-week filming window, this might only happen once.
But these ice falls mean the glacier is shifting,
and may calve very soon.
A transport helicopter has delivered the land-based team.
But the aerial's team in another helicopter are delayed.
All they can do is set up camp and wait.
With 24-hour daylight,
a calving event is filmable anytime day or night.
[glacier rumbling]
[Sophie] More bits, just.
Yeah, and down over there too.
It's got to go.
Yeah.
[rumbling, crashing]
[Sophie] So it's now nearly midnight.
It's still bright daylight.
And if the light wasn't enough to keep you awake,
you just hear all these sounds,
and I think they sound even louder when you're in your tent.
Dash outside and everything goes quiet. As soon as you come back in the tent...
-Like that. -[glacier rumbling]
They're seeing more and more ice falls.
But the aerial team still haven't arrived.
But today the sun's out and the glacier has woken up.
So we've been waiting on tenterhooks a bit in case it calves before they get here.
It's building up.
Helicopters aren't always needed to get a camera in the air.
The teams turn to a different solution on the high seas.
Thank you.
Yeah, that's it, the bait.
Okay, I can see the bait, you're good.
Exposure looks good.
Moving now. Keep the bait. There they go.
[man] Okay, dropping it.
Wildlife spectacles in the open ocean are unpredictable
and very short-lived.
Filming these from the air has always been a challenge
because helicopters can't venture far from land.
[man] Keep up with the bait.
Hold it there. I'm gonna come back towards the boat.
-Yeah, it's going up top, isn't it? -Yeah.
Now, with the very latest drones...
-Drop in a bit more. -Nice?
Looks amazing.
...we can at last get an aerial perspective
on these fleeting events
out on the high seas.
So it's the first time we've got a drone that's fast enough
and small enough and practical to launch from a boat.
So when we're out here miles and miles offshore,
it really is opening up a whole host of opportunities for us,
which is really exciting.
The team have come to Mexico's Gulf of California,
one of the best places in the world to see blue whales.
A blue whale.
It's our first blue whale. We've just...
We spotted it a second ago. It's absolutely enormous.
That's quite an obvious thing to say about a blue whale, but...
it is a huge, huge whale.
Whoa.
Oh, my God!
There it is, it's up.
It's a good start, but the crew have a more ambitious goal:
to film a blue whale mother and her calf from the air.
Drone's ready, let's go.
Filming is a two-man operation.
Hector flies the drone and Olly operates the camera.
They have to get the drone in position
then work out the best altitude and orientation for the shot.
[Olly] Hold it there.
Blue whales only surface for two to three minutes at the time
before diving for up to 15 minutes.
It's a narrow window for everything to come together.
-Can't see it. -There.
[Olly] Don't twist too much into the sun.
The light's so bright.
Too much. Okay, let's start again.
[Hector] Ah, she's diving.
So fast.
She's gone.
[Jamie] This is the little room.
Cold store, makeshift filming,
and a bucket...
We poo in a bucket.
It's the glamour.
That's Hector, Patrick,
Anatoly, Evgeny, Max...
This is where we eat, sleep,
dry things, get warm.
This is where everyone sleeps.
One, two, three people sleep in there.
It's luxurious.
[Sophie] Is that it? Is that the tour?
That's the tour, yeah. There's nothing else.
Then there's outside. There's a lot more outside.
[walruses baying outside]
The Night of the Living Dead.
Yeah.
Zombie attack. We just started to zombie-proof our home.
[Jamie] Zombies.
[walrus bellowing]
[Jamie] It's the middle of the night and we've just been woken up by...
The hut has been absolutely surrounded by walrus.
Every little hole you can look out of, where the generator goes out,
the crack in the door,
there's another hole out that way,
we're completely surrounded by walrus. It's amazing.
You hear banging against the sides of the hut. Hut feels like it's shaking.
You can hear their tusks on the wall.
It's quite amazing.
It's really exciting because we wanted them to come.
So yeah, it's brilliant.
It's like being surrounded by 50,000 Wookiees.
If we didn't know what they were that would be really scary.
[walrus baying]
When the team came to Russia
to film the largest gathering of walrus on the planet,
theyt never expected them to come knocking on their door.
The beach is absolutely jam packed full.
The problem with that is that the cabin is completely surrounded.
There's just walrus everywhere.
[grunting, bellowing]
With walrus blocking all exits,
there was only one place suitable for filming.
The cabin's surrounded so we have to film on the roof.
We had every form of weather from sunshine to snow to hail.
Seen all weather in a day here.
Rooftop filming in bad weather has its limitations.
What the team was really waiting for
was an opportunity to get the drone in the air.
We've got a break in the weather and there's walrus everywhere
and a gap, a break in the walrus as well.
We're gonna try to get the drone in the air and show the spectacle.
Yeah, straight along the shoreline.
Numbers are unbelievable.
Tens of thousands of walrus, as far as you can see.
The whole beach is full, the cliffs are full.
There's thousands in the water.
It's only from the air that you can truly see the scale of this spectacle.
Over 100,000 individuals hauled out on one beach.
There's no walrus left.
Overnight they've all gone.
I can't believe it goes from 80,000 walrus,
every single inch of beach has been covered,
to just empty.
In one night. Amazing.
Oh, there he is.
He's up, yeah.
-You taking off? -That's us.
Okay, forward.
There he is.
-Okay, go hard left. -Hard left.
Hard left.
In these ideal conditions,
and with the whales unconcerned by our drone,
the crew are able to capture intimate close-up images.
-Yeah, rolling. Move right. -Move right.
Yeah, hold it.
They even managed to film a blue whale feeding...
...its extended throat full of water and krill.
He is feeding there.
-Forward a bit. -Slow.
[whale exhaling air loudly
Sounds like he's quite close.
Wow.
Just got a big wide of a feeding whale.
Whoa. Let's go.
Keep rolling. It's good.
Yeah.
Mom and calf, mom and calf, let's go. Let's go.
-Yeah. -Ready?
Yeah.
That's it. Come up, move left.
-Left. -Nice.
Don't twist.
Keep going forward.
Yeah, keep to the left.
Okay. Oh, beautiful.
I'm gonna hold the shot there. Gonna hold.
Okay, holding.
Yeah, that's nice, it's beautiful.
Let's just keep gently into him. Just keep, this is the shot, don't worry.
Coming back. Coming back just real gently with him.
Beautiful. That's the one.
She's coming straight at the drone. Let's get lined up on her.
You can see its face.
Whoa. That's lovely.
Seeing some of the calf, and seeing its face
and seeing it dip under Mom and come back out
and that sort of behavior was...
yeah, I think that's definitely the winner.
Yeah, that was pretty special.
With their innovative use of drones,
the team were able to capture these rare intimate moments...
revealing a new tender side
to the largest animal that has ever lived.
At the glacier, the sound everyone has been waiting for.
[helicopter blades whirring]
And not a moment too soon.
Hello, Jamie. How are you?
Welcome to Store.
[Jamie] Yeah, beautiful.
But with the aerial team finally in place,
the glacier's activity drops without warning.
All they can do is wait,
and hope it calves before their time runs out.
[man] Everything's gonna come together. Sun's gonna come out,
the ice is gonna calve, and we're gonna capture it all on film.
On the last day.
It's usually what happens.
Mmm.
[glacier rumbling]
Yep, that's another bit coming up from the bottom.
[Sophie] More to the right.
-Where? -Right, to the right of that bit.
-We've got bits on the-- -Oh, look. That bit.
I'd get on the wide, if I were you.
[man] Wow! Look at that one.
Rising up, that pillar.
Okay, we're good to go.
[man] Okay, Mateo, let us know what you see.
Okay, we'll let you know if there's any activity on the nose. Over.
Okay, I'm going in for details. Are you on the wide?
Okay, just go straight ahead.
Does it look like that bit above the arch is gonna go?
They must get close to film.
I don't wanna be this close to the wall ahead.
But how close is too close?
Okay, let's try and get above this now.
[man] Let's just get a bit higher.
With the pilot dodging truck-sized ice blocks,
it's clear something much bigger is about to happen.
[man] Jamie, camera left.
The whole face is going.
A kilometer of ice breaks off the front.
And half a kilometer of underwater ice
starts rushing to the surface.
[man] Jean Michel, get us in as close as you think you can.
[Jamie] Okay, hold this line, as steady as you can go.
That's great.
Can we get a little bit lower?
Yeah, that's really good.
[man] Jean Michel, pull up. Up! Up!
The pilot must navigate around 75 million tons of ice
crashing about the bay.
[man] Wider, wider, wider.
[Jamie] Yeah, that's really good.
Okay, let's try and get around this if we can.
[Jamie] Can we slide left from this?
Looks amazing.
Unbelievable. I've never seen anything like it.
[man] We're just gonna work around the icebergs.
We need you to let us know if there's more calving.
Yeah, we will do but... [bleep] hell.
That was unbelievable.
How was it from the helicopter?
[laughs] Oh, [bleep] amazing.
It was like a video game, honestly.
It was just like around that bit there and there was like a whole mountain
rising out of the sea and then flipping over and then turning.
Did you see, we went high, it's calved?
-We get the plan view. -Yeah.
-And we were looking in... -And then we saw--
...something came, it was just a whole face was collapsing.
We just came in on absolute--
-[Sophie] I saw that, yeah. -That second calving was just immense.
And it just came up to the left of the helicopter.
-[Jamie] I forgot about that, yeah. -And he was going, "Wider!"
[man] Were you pulling back, or what, at the time?
At some point I needed to because I saw, actually, an iceberg in the mirror.
And then he said, "Pull up! Pull up! Pull up! Whoa!"
I could just hear Adam, "Come here, okay, camera left, no!"
Jamie in the back, "Oh, my God! This is...! Oh, my God!
The most amazing thing I've ever seen, let alone filmed.
Yeah, it's worth it.
-Absolutely fantastic. -Yeah.
Oh, boy.
Right, kettle's on.
Oh, boy.
On the Russian coast,
the polar celebrities have turned up.
This, polar bear country.
Luckily, Russian walrus biologist Anatoly Kochnev
is no novice when it comes to fending off polar bears...
and has developed his own unique way of dealing with them:
a long stick.
I stick and he staying in...
around stick.
Yeah.
Yes. See, and...
I'm the polar bear.
[growls] Then...
Yeah.
A little bit worried that all we've got is a stick when there's 12 bears
that you can see from here.
But I trust Anatoly.
My trust in science.
Let's go.
[Sophie] So I'm not sure I wanna go now.
Anatoly's stick technique,
combined with years of experience reading bears,
appears to be keeping them at bay.
[Jamie] They're all fat and happy so...
we haven't had any bears here that aren't really chilled out,
and they just walk straight past you, totally ignore us.
If anything, when they get a scent of you, they tend to move away a bit,
give you a bit of distance but, no, they're really chilled out.
With the bears relaxed, the team could turn their attention to the walrus
that had started to come ashore.
But they never expected what was to follow.
Walrus climbing to the very top of the cliffs
to get away from the crush below.
[grunts]
I don't understand. Why are they going up there?
Like...
literally to the top of the rockiest part of the cliff.
Once at the top of the 80-meter cliffs they rest,
until it's time to return to the sea in search of food.
[Sophie] That last little section is the steep bit, and they all just...
It's really steep. That bit.
Oh, God.
Gently.
[Jamie] One's gonna go.
There's one right on the edge.
It's the worst thing I've ever filmed. They're not designed to climb cliffs.
It's the least evolutionary stable strategy I've ever seen.
I don't understand it at all.
It's just so horrible.
It's just un...
You can't fathom why, how...
It can see the walrus out at sea and it just wants to go straight to them.
And it has no concept of...
falling, I think, I don't know what it is.
Still really depressing, but today, I'm just really annoyed
at how ridiculous it is that they just--
They're not being pushed, there's no stampede. It calmly walked off a cliff.
[Jamie] There's probably two or three hundred dead walrus
on, like, a half mile stretch of beach here.
They're exhausted 'cause they're having to swim 100 miles
to get food and then come back here 'cause it's the only place to sleep.
They used to sleep on the ice, dive down, eat the food, sleep on the ice, easy.
Now they're swimming a hundred miles, coming to this place, climbing cliffs,
and they're exhausted and falling down and...
are either being killed falling or just crushing each other
'cause there's several thousand crammed onto little tiny bits of beaches,
and then polar bears just have a field day.
They're not being attacked by polar bears. They just fall to their death.
Completely on their own now 'cause they can't get down the cliffs.
They're clearly not designed to climb cliffs.
[Sophie] This is the sad reality of climate change.
They'd be on the ice right now if they could be.
But there's no option but to come to land.
And they're just a danger to themselves.
It's really hard to watch and witness this.
It's just...
Thing is, it's not like a...
a quick death, they just, like, tumble...
and they get internal injuries and they just lie here.
It's just so heart-breaking.
Really sad.
Please visit ourplanet.com
to discover how our planet can thrive again.
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