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Subtitles: FΛSSTΞCH
For Addic7ed.com
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The deep ocean.
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For mammals,
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it's one of the most
inhospitable places on Earth.
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Can we move another
camera to channel three?OK.
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Anything we've got. Yeah.
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Survival in this alien world...
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..requires extreme adaptations.
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We have only recently begun
to explore these depths.
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So if you're watching on channel
one, the Supersampler is...Yeah.
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The heck is that?!
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Oh, my gosh!
Oh, my goodness, what is that?
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Yet, some mammals
have been coming here
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for millions of years.
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It's a sperm whale.
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Oh, my goodness.
Look at that shape.
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Holy cow!
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Wow!
Unbelievable.
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Like all mammals,
sperm whales breathe air.
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Yet, almost a mile underwater,
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in the freezing darkness,
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they seem completely at home.
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They, like many mammals,
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have overcome the challenges
of living in water
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in the most remarkable ways.
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Many mammals, encountering water,
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prefer to do no more
than dip their toes into it.
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Northern Sri Lanka,
late in the dry season.
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A troop of macaques
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are looking for what little fruit
is left in the forest.
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Their search has brought them
to a jungle pool.
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But there's more for them here
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than just a refreshing drink.
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Water lilies.
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Enough to fill the empty stomachs
of the entire troop.
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But the flowers
are just out of reach.
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Got it!
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But a single flower
merely whets the appetite.
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For the real prize...
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..they must take the plunge.
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For an animal that spends
nearly all of its time on land,
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macaques are surprisingly
competent in water.
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They're looking for
the lilies' juicy seed pods...
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...which are packed
full of nutrients.
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An excellent solution to the
macaques' seasonal food crisis.
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Thanks to their natural curiosity...
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...and willingness
to explore new opportunities..
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..these macaques have discovered
that it can pay to jump into water.
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Freshwater ponds in a jungle
may be few and far between.
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In Central Canada, however,
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water is everywhere.
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Moist soil is easy to dig...
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..and just underground
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there is a network of tunnels.
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The work of a particularly
industrious little mammal.
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A star-nosed mole.
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Virtually blind,
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he relies on his
super-sensitive nose.
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It's not just for smelling.
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It's also...
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...for feeling.
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And it is 100 times more sensitive
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than our own fingertips.
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To fuel his active lifestyle,
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he must eat up to twice
his body weight every day.
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And worms, as they burrow,
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simply drop into his tunnels
of their own accord.
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Life underground can be pretty good.
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But every spring,
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torrential rain saturates the soil.
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Before long,
the mole's tunnels are flooded.
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He can hold his breath
for little more than 30 seconds.
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He must get out or he'll drown.
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Made it!
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But having taken a breath...
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..he dives straight back in.
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Large feet, excellent for digging,
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also make very effective paddles.
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And his water-resistant coat
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keeps him warm...
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..so he's well equipped
for swimming.
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But, nonetheless, there's a problem.
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How do you sniff out prey
underwater?
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First, he blows bubbles
into the submerged leaves.
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Smells pass into them.
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And sniffing them with his nose
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enables him to detect
something edible...
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...so he can locate possible prey
even underwater.
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Star-nosed moles
are one of the few mammals
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that are just as at home in the
water as they are in soil.
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Beyond land,
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the oceans that cover
two-thirds of our planet
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are full of possible food.
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For most mammals, it's out of reach.
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But that doesn't stop some
from trying to get it.
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A female coyote,
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patrolling the Pacific coast
of Mexico.
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Living on the edge of a desert
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means often relying
on the ocean for food.
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This female would make a meal
of a sea bird
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if only she could catch one.
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She can't afford to keep failing.
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Driven by hunger, she moves on.
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The desert stretches 2,000 miles
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along Mexico's Baja coast.
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Coyotes living here
are forced to explore
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tangled mangroves and deep creeks.
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After a long day
under the desert sun,
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persistence pays off.
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A dead body cast up by the waves.
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It's the carcass of a grey whale...
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...rotting in the sun.
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Enough to feed her for months.
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But other hungry beachcombers
have found it, too.
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They quarrel over the best bits.
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But a 40-tonne whale is more
than enough food to go round.
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The daily tides
provide so much food
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that the Baja's Pacific coastline
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supports up to 14 times
the number of coyotes
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than occur inland.
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But extending scavenging on shore
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to hunting in the sea
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requires very different skills.
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Nonetheless, 50 million years ago,
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the ancestors of marine mammals
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started to do exactly that.
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A bottlenose dolphin
and her two young
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cruise the shallows of Florida Bay.
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The coastal waters here
are full of fish.
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00:16:30,040 --> 00:16:33,560
But much of the bay
is less than a metre deep.
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For a large mammal with a tail
that beats up and down,
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just moving around here
is a challenge.
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But she has a simple solution.
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She swims on her side.
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00:16:56,600 --> 00:16:59,480
But it's still a struggle
to keep up with a fish.
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Let alone catch one.
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And a single fish won't feed
a family.
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00:17:22,840 --> 00:17:26,160
But this intelligent mother
has another,
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even more ingenious, solution.
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Beating her tail,
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she churns up the water...
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..creating a muddy barrier...
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..around a shoal of fish.
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In a bid to escape...
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..the fish are forced...
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..to leap.
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She's not the only one
that gets a meal.
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Her young family can also feed.
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But rings of muddy water
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aren't the only way in which
dolphins hunt in Florida.
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This family uses an S-shaped barrier
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to spook the fish.
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Why Florida's dolphins
use different shapes
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remains a mystery.
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But this ingenuity
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enables marine mammals
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to move far beyond the shallows.
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Californian sea lions.
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00:20:04,200 --> 00:20:08,120
They may spend over 70%
of their lives out at sea.
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They know the opportunities
offered by the open ocean
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are endless.
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The trick is how to make
the most of them.
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The sea lions have spent
a lot of energy to get here,
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and the sardines they seek are
widely dispersed beneath them.
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The hunters need to round them up.
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Striped marlin arrive.
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Up to four metres long
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and with a deadly spear
on their nose,
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they, too, are hunting.
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Watched by the sea lions...
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..the marlin go to work.
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They herd the sardines
into a ball...
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..and then drive them
up towards the surface.
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This is what the sea lions
have been waiting for.
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Fast and flexible,
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the sea lions take advantage
of the marlin's efforts...
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..and collect an easy meal.
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These canny sea lions
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have learnt how to let marlin
do the hard work.
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But sea lions don't stay
permanently in water.
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The Galapagos Islands.
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Specks of land in the vast emptiness
of the Pacific Ocean.
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Here, pregnant Galapagos sea lions
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haul out on a beach to give birth.
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Unable to swim
when it's newly born,
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a pup relies completely
on its mother
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for her care and her milk.
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Within two weeks, thanks to the
richness of this milk,
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it will be strong enough
to venture into the water.
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But a newborn pup
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is something of a shock
to its older brother.
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For the last two years,
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he's had his mother all to himself.
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The new pup is a sure sign
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that he must now find his own feet.
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A sheltered inlet is a safe place
for pups and other juveniles
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to build up their confidence.
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Now, under the watchful eye
of a dominant bull...
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..the young sea lions acquire
the skills they'll need
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for a life at sea.
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But this is the time of year
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when sea lions also mate.
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While the bull's attention
is elsewhere...
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..the pup ventures beyond
the safety of the rock pool.
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It's a mistake.
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The waters surrounding the Galapagos
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are patrolled by sharks.
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The pup strays further
from the pool...
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..while the bull is preoccupied.
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The pup can outmanoeuvre
the shark...
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..but not for long.
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00:26:30,560 --> 00:26:32,360
Alerted by the commotion...
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00:26:35,000 --> 00:26:37,120
..the bull takes action.
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00:26:43,240 --> 00:26:45,600
Weighing a quarter of a tonne,
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00:26:45,600 --> 00:26:48,200
the bull is more than a match
for the shark.
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00:26:50,280 --> 00:26:52,000
Biting at its tail,
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00:26:52,000 --> 00:26:53,560
he chases it away.
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00:26:56,040 --> 00:26:59,800
For the pup, it's an important
lesson learned.
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00:27:03,880 --> 00:27:05,080
Many others...
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00:27:06,400 --> 00:27:07,960
..are less fortunate.
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Nearly half of these young sea lions
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00:27:12,400 --> 00:27:15,440
will not survive beyond
their second birthday.
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This pup is safely back on land,
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and not too old
for a reassuring cuddle.
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One small group of mammals, however,
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00:27:36,440 --> 00:27:39,680
have completely cut their ties
with the land.
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00:28:03,680 --> 00:28:07,720
Humpback whale calves can swim
from the moment they're born.
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00:28:13,320 --> 00:28:17,000
The warm coastal shallows
off Western Australia
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provide excellent nurseries.
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00:28:22,840 --> 00:28:24,920
In their first few days,
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00:28:24,920 --> 00:28:28,320
mothers and babies
form a strong bond.
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00:28:35,520 --> 00:28:38,160
Tucked gently under her fin,
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00:28:38,160 --> 00:28:40,120
this mother gives her daughter
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00:28:40,120 --> 00:28:43,120
an early lesson
in holding its breath.
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00:28:48,480 --> 00:28:50,720
But they won't stay here for long.
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00:28:52,960 --> 00:28:55,680
The reef may be an excellent
place to give birth...
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00:28:57,440 --> 00:28:59,560
..but there's almost
nothing to eat here...
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00:29:01,040 --> 00:29:02,680
..so mothers and young
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00:29:02,680 --> 00:29:07,360
must now make the long journey
to richer waters around Antarctica.
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00:29:18,120 --> 00:29:21,280
But once they've left the safety
of the shallow reef
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they are vulnerable.
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00:29:33,560 --> 00:29:35,120
A pod of orca...
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00:29:36,680 --> 00:29:40,160
..six strong,
patrols the migration route.
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00:29:42,000 --> 00:29:44,040
They are a formidable force.
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00:29:48,320 --> 00:29:51,520
But the humpback mother
puts her baby high on her back
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00:29:51,520 --> 00:29:52,840
to protect it...
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00:29:54,640 --> 00:29:57,640
..and then goes on
the attack herself.
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00:30:00,600 --> 00:30:02,520
Slashing her powerful tail
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00:30:02,520 --> 00:30:04,680
and long five-metre fins,
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00:30:04,680 --> 00:30:06,960
she could easily kill an orca.
251
00:30:11,240 --> 00:30:13,120
But the orca have a plan.
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00:30:18,600 --> 00:30:21,040
Some of the pod distract
the mother...
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00:30:23,360 --> 00:30:25,680
..while others ram the calf.
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00:30:52,960 --> 00:30:54,680
Once it's separated...
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00:30:56,760 --> 00:30:58,440
..they drown it.
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00:31:12,160 --> 00:31:14,200
Since 1986,
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00:31:14,200 --> 00:31:17,560
when commercial whaling
was largely banned,
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00:31:17,560 --> 00:31:21,840
humpback numbers have risen here
from a few hundred
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00:31:21,840 --> 00:31:24,880
to more than 35,000.
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00:31:27,280 --> 00:31:29,720
With so many calves on the move,
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some orca have specialised
in hunting them.
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00:31:35,720 --> 00:31:39,080
A small pod - just three.
263
00:31:47,200 --> 00:31:49,160
The humpback calf they're pursuing
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00:31:49,160 --> 00:31:52,360
has more than just its mother
at its side.
265
00:31:57,600 --> 00:31:59,040
It also has...
266
00:32:00,280 --> 00:32:02,400
..a 40-tonne male.
267
00:32:11,040 --> 00:32:13,480
This is a much bigger challenge.
268
00:32:25,120 --> 00:32:27,160
But rather than give up...
269
00:32:29,120 --> 00:32:31,440
..the orca bide their time.
270
00:32:55,720 --> 00:32:57,240
The male humpback,
271
00:32:57,240 --> 00:32:59,760
believing, perhaps,
that the orca have gone...
272
00:33:01,560 --> 00:33:03,320
..now dives.
273
00:33:10,240 --> 00:33:12,560
The killers seize their opportunity.
274
00:33:20,800 --> 00:33:23,040
They kidnap the calf.
275
00:33:38,800 --> 00:33:41,440
They appear to mimic
the mother's behaviour,
276
00:33:41,440 --> 00:33:43,640
putting the young calf
on their backs
277
00:33:43,640 --> 00:33:46,400
and carrying him along
in the slipstream.
278
00:33:52,040 --> 00:33:54,040
Young and naive,
279
00:33:54,040 --> 00:33:56,800
the calf goes willingly with them.
280
00:34:02,960 --> 00:34:05,680
Now, far from his mother...
281
00:34:08,080 --> 00:34:10,800
..the orca attack him.
282
00:34:25,320 --> 00:34:27,600
During the months of migration,
283
00:34:27,600 --> 00:34:31,160
the pod may kill as many
as five calves a day.
284
00:34:35,200 --> 00:34:37,320
They catch so many
285
00:34:37,320 --> 00:34:40,920
that sometimes they eat
no more than the tongue...
286
00:34:43,520 --> 00:34:46,760
..and leave the rest
for the sharks.
287
00:34:53,440 --> 00:34:55,800
This is what can happen
288
00:34:55,800 --> 00:34:58,200
when prey is so abundant
289
00:34:58,200 --> 00:35:01,000
and hunters have such skill.
290
00:35:13,560 --> 00:35:17,360
False killer whales are less
than half the size of orcas...
291
00:35:19,040 --> 00:35:21,240
..but they are equally clever.
292
00:35:25,080 --> 00:35:29,360
They roam the ocean in groups
up to 50 strong.
293
00:35:33,000 --> 00:35:36,760
Right now, they're on the hunt
for other mammals.
294
00:35:42,280 --> 00:35:44,840
Ocean-going bottlenose dolphins.
295
00:35:58,760 --> 00:36:01,640
But the false killers
aren't looking for prey.
296
00:36:04,000 --> 00:36:07,240
These two groups
are old acquaintances.
297
00:36:12,840 --> 00:36:15,120
In the waters around New Zealand,
298
00:36:15,120 --> 00:36:17,960
they are almost always found
together.
299
00:36:27,120 --> 00:36:30,240
Lifelong bonds within species
are common...
300
00:36:33,200 --> 00:36:36,800
..but they are rarely seen
between different species.
301
00:36:40,160 --> 00:36:41,800
Such friendships
302
00:36:41,800 --> 00:36:44,160
between bottlenose dolphins
and false killers...
303
00:36:46,320 --> 00:36:49,280
..have been documented
going back 20 years...
304
00:36:50,960 --> 00:36:55,480
..so it's entirely possible
that individuals of both species
305
00:36:55,480 --> 00:36:57,520
recognise each other.
306
00:37:02,280 --> 00:37:05,280
They team up not only to play...
307
00:37:08,440 --> 00:37:10,160
..but in order to hunt.
308
00:37:13,520 --> 00:37:15,080
So, when one goes...
309
00:37:17,040 --> 00:37:18,680
..they all go.
310
00:37:33,480 --> 00:37:37,280
A huge school of kahawai fish.
311
00:37:49,720 --> 00:37:52,440
The false killers
swim under the shoal...
312
00:37:54,200 --> 00:37:56,200
..and drive it to the surface.
313
00:37:58,560 --> 00:38:01,480
Here, the dolphins attack.
314
00:38:12,040 --> 00:38:14,320
But despite helping,
315
00:38:14,320 --> 00:38:17,320
the whales don't appear to feed.
316
00:38:19,280 --> 00:38:22,560
For them,
the kahawai are just the bait.
317
00:38:26,880 --> 00:38:30,600
The false killers know the commotion
will attract bigger fish.
318
00:38:34,360 --> 00:38:35,920
Kingfish arrive.
319
00:38:37,480 --> 00:38:41,000
They're up to ten times heavier
than the kahawai,
320
00:38:41,000 --> 00:38:42,920
and one metre long.
321
00:38:47,480 --> 00:38:49,200
Too big for the dolphins.
322
00:38:51,280 --> 00:38:55,280
So, now it's the turn of the false
killer whales to feed.
323
00:39:07,360 --> 00:39:09,440
They form small groups
324
00:39:09,440 --> 00:39:11,040
and break up the school...
325
00:39:16,520 --> 00:39:20,160
..and then go after the fish
that get separated.
326
00:39:39,680 --> 00:39:42,200
Not all the whales make a catch.
327
00:39:44,400 --> 00:39:46,680
But they won't go hungry.
328
00:39:51,520 --> 00:39:56,120
Extraordinarily, the successful
hunters share their food.
329
00:40:19,040 --> 00:40:20,680
By helping one another...
330
00:40:21,800 --> 00:40:25,040
..they ensure that no-one
goes without.
331
00:40:43,360 --> 00:40:46,480
Teamwork, intelligence
and cooperation
332
00:40:46,480 --> 00:40:50,280
has enabled marine mammals
to flourish in the high seas.
333
00:40:52,920 --> 00:40:56,880
But one part of the ocean is still
beyond the reach of most.
334
00:40:59,480 --> 00:41:00,960
The deep.
335
00:41:02,760 --> 00:41:06,840
Only a very few are capable
of venturing here.
336
00:41:15,720 --> 00:41:18,760
A pod of sperm whales resting
near the surface.
337
00:41:27,680 --> 00:41:31,840
They spend just 7%
of their lives asleep,
338
00:41:31,840 --> 00:41:34,400
less than almost any other mammal.
339
00:41:36,160 --> 00:41:38,840
But they're also waiting here
340
00:41:38,840 --> 00:41:41,280
for another very special reason.
341
00:42:02,280 --> 00:42:05,200
The birth of a baby.
342
00:42:27,840 --> 00:42:31,160
Helped into the world
by supportive relatives,
343
00:42:31,160 --> 00:42:35,040
the newborn is already
more than three metres long.
344
00:42:44,200 --> 00:42:49,000
It will grow up surrounded
and protected by close family.
345
00:43:22,080 --> 00:43:25,520
It thirsts for its mother's milk,
346
00:43:25,520 --> 00:43:29,040
but the food the mother needs
in order to produce it
347
00:43:29,040 --> 00:43:31,360
is 1,000 metres below,
348
00:43:31,360 --> 00:43:34,880
far beyond the reach
of a young calf.
349
00:43:38,120 --> 00:43:40,800
So, whilst the family
looks after the newborn...
350
00:43:43,360 --> 00:43:46,560
..the mother sets off
in search of a meal.
351
00:43:52,640 --> 00:43:55,440
Adult sperm whales may remain below,
352
00:43:55,440 --> 00:43:57,720
holding their breath, for an hour.
353
00:44:03,000 --> 00:44:07,040
As they descend, their bodies
change in an astonishing way.
354
00:44:16,720 --> 00:44:20,080
The increasing pressure
squeezes their lungs
355
00:44:20,080 --> 00:44:22,520
until they collapse completely.
356
00:44:29,760 --> 00:44:31,440
To save oxygen,
357
00:44:31,440 --> 00:44:34,200
their digestion,
kidney and liver shut down.
358
00:44:38,120 --> 00:44:41,880
A special camera records
a rare and privileged view
359
00:44:41,880 --> 00:44:45,040
of a hunting sperm whale,
360
00:44:45,040 --> 00:44:47,120
sending out a stream of clicks
361
00:44:47,120 --> 00:44:50,640
to detect prey
in the pitch blackness.
362
00:44:53,240 --> 00:44:56,960
At this depth, they start
to hunt for giant squid.
363
00:45:01,160 --> 00:45:02,680
As the whale closes in,
364
00:45:02,680 --> 00:45:04,720
their clicks speed up.
365
00:45:09,360 --> 00:45:13,560
A puff of ink is released
by the fleeing squid,
366
00:45:13,560 --> 00:45:16,600
but the sperm whale isn't fooled...
367
00:45:18,280 --> 00:45:21,520
..and the squid is eaten
in a last cloud of ink.
368
00:45:35,640 --> 00:45:37,720
As this mother returns,
369
00:45:37,720 --> 00:45:40,360
her calf, like all mammal babies,
370
00:45:40,360 --> 00:45:43,320
has only one thing on its mind.
371
00:45:45,840 --> 00:45:47,640
Milk.
372
00:46:02,560 --> 00:46:04,680
It's growing faster now
373
00:46:04,680 --> 00:46:07,480
than during its 16 months
in the womb.
374
00:46:10,080 --> 00:46:13,080
And it will consume
up to 100 litres,
375
00:46:13,080 --> 00:46:15,640
300,000 calories,
376
00:46:15,640 --> 00:46:18,640
every day for the next two years.
377
00:46:21,960 --> 00:46:23,960
To meet this demand,
378
00:46:23,960 --> 00:46:27,720
its mother will have to dive
up to 15 times every day.
379
00:46:32,320 --> 00:46:35,480
It is her ability to reach
such extreme depths
380
00:46:35,480 --> 00:46:38,960
and turn what she eats
into rich milk
381
00:46:38,960 --> 00:46:42,160
that will be the key
to her baby's success.
382
00:46:51,760 --> 00:46:53,400
Today,
383
00:46:53,400 --> 00:46:55,800
protected almost worldwide,
384
00:46:55,800 --> 00:46:58,880
the outlook for this mother
and baby,
385
00:46:58,880 --> 00:47:01,160
and all sperm whales,
386
00:47:01,160 --> 00:47:02,640
is bright.
387
00:47:11,560 --> 00:47:15,960
Even so, sperm whales
still face many threats.
388
00:47:19,400 --> 00:47:23,320
Every year, enough fishing line
is lost in our oceans
389
00:47:23,320 --> 00:47:25,560
to stretch to the moon and back...
390
00:47:27,800 --> 00:47:30,400
..together with 20 million traps,
391
00:47:30,400 --> 00:47:33,600
and carrying 14 billion hooks.
392
00:47:37,680 --> 00:47:42,000
The whales become entangled
in these so-called "ghost nets".
393
00:47:48,520 --> 00:47:51,520
The lines cut into their bodies...
394
00:47:55,120 --> 00:47:58,440
..and the floats can prevent them
from diving.
395
00:48:04,200 --> 00:48:08,240
Theirs is a slow
and agonising death.
396
00:48:15,480 --> 00:48:18,600
We are now aware
of the threats we create.
397
00:48:20,880 --> 00:48:25,800
Surely, we should now do everything
we can to prevent them.
398
00:48:40,520 --> 00:48:43,120
The greatest challenge
for the Mammals team
399
00:48:43,120 --> 00:48:46,480
was not only filming false
killer whales in New Zealand,
400
00:48:46,480 --> 00:48:48,640
but trying for the first time
401
00:48:48,640 --> 00:48:51,560
to place a data-recording
camera onto one.
402
00:48:52,840 --> 00:48:58,200
With only 150 individuals somewhere
within 4,500 square miles,
403
00:48:58,200 --> 00:49:01,000
just finding them
will be hard enough.
404
00:49:01,000 --> 00:49:04,960
Luckily, they have the help
of Jochen Zaeschmar,
405
00:49:04,960 --> 00:49:07,080
who has been studying
this group of whales
406
00:49:07,080 --> 00:49:08,800
for the last 20 years.
407
00:49:10,600 --> 00:49:13,200
He has a directional hydrophone,
408
00:49:13,200 --> 00:49:16,400
with which he can hear the false
killer whales' whistles...
409
00:49:18,280 --> 00:49:21,520
...but only from less
than ten miles away.
410
00:49:23,360 --> 00:49:24,600
Nothing.
411
00:49:24,600 --> 00:49:27,720
I was kind of hoping...
kind of hoping to hear something.
412
00:49:27,720 --> 00:49:31,680
Cameraman Andre Rerekura
scans the horizon,
413
00:49:31,680 --> 00:49:35,840
but picking out a fin in the open
ocean is no small feat.
414
00:49:37,680 --> 00:49:39,520
The scale of the task ahead
415
00:49:39,520 --> 00:49:42,760
is dawning on assistant producer
Kyle Swann.
416
00:49:42,760 --> 00:49:44,760
Searching.
Searching, searching.
417
00:49:44,760 --> 00:49:47,360
That's kind of the strategy,
418
00:49:47,360 --> 00:49:49,520
but so far, no luck.
419
00:49:49,520 --> 00:49:51,640
With only a brief few weeks
420
00:49:51,640 --> 00:49:54,120
during which it's possible
to film them,
421
00:49:54,120 --> 00:49:56,200
it's a disappointing start.
422
00:50:02,520 --> 00:50:03,960
There's absolutely nothing.
423
00:50:05,360 --> 00:50:09,600
Over the coming days,
the team search without pause.
424
00:50:15,840 --> 00:50:17,720
Nothing.
425
00:50:17,720 --> 00:50:19,240
Absolutely nothing.
426
00:50:19,240 --> 00:50:20,520
Nothing again.
427
00:50:21,680 --> 00:50:24,080
Still, keep trying.
428
00:50:25,960 --> 00:50:29,000
They have spent 20 days
with no whales...
429
00:50:30,440 --> 00:50:33,640
..but Andre spots something
promising in the distance.
430
00:50:33,640 --> 00:50:37,600
There's a few birds,
but nothing crazy.
431
00:50:37,600 --> 00:50:40,360
Yeah, well, that's where I heard
some faint whistles there.
432
00:50:43,440 --> 00:50:45,600
Worth a look while we're here.
433
00:50:50,840 --> 00:50:52,480
Ah, I've got something!
434
00:50:52,480 --> 00:50:55,120
Whoa! We have a haul.
Oh, my God, yeah.
435
00:50:55,120 --> 00:50:56,720
It's promising.
It looks...
436
00:50:56,720 --> 00:50:59,280
I've seen a stumpy nose!
437
00:50:59,280 --> 00:51:01,560
I think we've got falsies!
438
00:51:01,560 --> 00:51:03,600
Whoa!
Falsies!
439
00:51:03,600 --> 00:51:05,800
No way! Woohoo!
440
00:51:05,800 --> 00:51:06,960
We have 'em!
441
00:51:14,160 --> 00:51:15,760
But with the sun setting
442
00:51:15,760 --> 00:51:19,000
and the whales capable
of covering 100 miles a day,
443
00:51:19,000 --> 00:51:21,720
the team hop on their liveaboard
444
00:51:21,720 --> 00:51:24,000
to follow the whales overnight.
445
00:51:27,240 --> 00:51:30,680
The crew takes turns on watch,
446
00:51:30,680 --> 00:51:33,040
using their eyes and ears.
447
00:51:36,880 --> 00:51:39,040
Yeah, we've pretty much
done circles all night.
448
00:51:39,040 --> 00:51:41,280
We're in the same spot we found
them yesterday afternoon,
449
00:51:41,280 --> 00:51:42,920
so they don't go far.
450
00:51:42,920 --> 00:51:44,880
Like Jochen says, they just sleep.
451
00:51:44,880 --> 00:51:48,480
So they've probably had
more sleep than us!
452
00:51:48,480 --> 00:51:50,960
Falsies off the bow!
Big old falsies off the bow.
453
00:51:52,600 --> 00:51:55,760
Woohoo-hoo!
There's one just here.
454
00:51:55,760 --> 00:51:58,240
Oh, my God,
this is just amazing.
455
00:52:00,280 --> 00:52:02,160
They're in a good mood.
456
00:52:02,160 --> 00:52:05,080
A new dawn presents a new challenge.
457
00:52:06,960 --> 00:52:08,840
Back on the filming boat,
458
00:52:08,840 --> 00:52:12,280
the team follow the false killers
as they hunt.
459
00:52:13,760 --> 00:52:17,400
No-one has ever recorded them
creating a bait ball before.
460
00:52:19,200 --> 00:52:22,440
But the whales can swim at 20mph,
461
00:52:22,440 --> 00:52:26,280
so Andre has brought
a little extra propulsion.
462
00:52:30,680 --> 00:52:32,600
The scooter's a game-changer.
463
00:52:34,360 --> 00:52:37,880
You can free-dive down with,
you know, a full lung of air,
464
00:52:37,880 --> 00:52:39,280
all your energy,
465
00:52:39,280 --> 00:52:43,560
and hold your breath for a minute
and a half to two minutes with ease.
466
00:52:43,560 --> 00:52:46,800
The scooter lets him
keep up with false killers
467
00:52:46,800 --> 00:52:50,640
and helps propel him swiftly
into the heart of the action.
468
00:53:01,840 --> 00:53:03,840
Once the feeding frenzy is over,
469
00:53:03,840 --> 00:53:06,640
the whales turn their attention
to Andre.
470
00:53:10,360 --> 00:53:12,800
This incredible interaction.
471
00:53:12,800 --> 00:53:15,800
It just...just made me
realise how amazing
472
00:53:15,800 --> 00:53:17,760
and intelligent these animals are.
473
00:53:20,000 --> 00:53:22,160
It was really unique
and really special.
474
00:53:25,760 --> 00:53:28,560
That was... Woo!
475
00:53:28,560 --> 00:53:30,400
I can't even explain that!
476
00:53:34,120 --> 00:53:37,000
Having captured
this extraordinary behaviour,
477
00:53:37,000 --> 00:53:40,400
the team switch to the most
difficult goal of the trip...
478
00:53:42,640 --> 00:53:45,680
..to place a suction tag on a whale.
479
00:53:48,240 --> 00:53:50,800
For 20 years,
Jochen has studied this group
480
00:53:50,800 --> 00:53:52,680
of false killer whales,
481
00:53:52,680 --> 00:53:54,560
but this would be a first.
482
00:53:57,640 --> 00:54:01,480
The tag contains a camera
and a data collector.
483
00:54:01,480 --> 00:54:04,800
Combined, they will give Jochen
new insights
484
00:54:04,800 --> 00:54:07,360
into how these animals
spend their time underwater.
485
00:54:09,560 --> 00:54:12,200
Getting close enough to attach a tag
486
00:54:12,200 --> 00:54:15,960
will take every ounce of Jochen's
expertise and understanding.
487
00:54:18,160 --> 00:54:19,760
Here they are.
488
00:54:19,760 --> 00:54:22,240
While they're just chilled,
I'll just go in there real slow.
489
00:54:23,560 --> 00:54:25,600
Hope to... Hope to get lucky.
490
00:54:27,920 --> 00:54:29,720
OK, OK, OK, OK.
491
00:54:31,600 --> 00:54:33,840
Beautiful, beautiful,
beautiful, beautiful.
492
00:54:33,840 --> 00:54:36,240
OK.
No, no, no.
493
00:54:37,320 --> 00:54:39,760
No. No, no, on the next one,
on the next one.
494
00:54:39,760 --> 00:54:42,840
They're going down a bit.
We'll get them, we'll get them.
495
00:54:44,000 --> 00:54:46,160
Trying to find
that perfect moment!
496
00:54:46,160 --> 00:54:48,160
Heart's going through the roof!
497
00:54:53,120 --> 00:54:55,200
This is a bunch of different males.
498
00:54:55,200 --> 00:54:57,080
Let's see, though,
see how they like us.
499
00:54:58,400 --> 00:55:00,560
They're all coming together now.
500
00:55:09,520 --> 00:55:12,240
There's just so, so many factors.
501
00:55:12,240 --> 00:55:14,160
The way the angle of the camera is,
502
00:55:14,160 --> 00:55:16,200
where it comes up next to you.
503
00:55:16,200 --> 00:55:18,320
I'm hopeful. It's hard work.
504
00:55:18,320 --> 00:55:20,120
They're not making it easy.
505
00:55:20,120 --> 00:55:21,800
As the wind drops,
506
00:55:21,800 --> 00:55:24,600
the team have a brief
but perfect opportunity.
507
00:55:28,000 --> 00:55:29,400
So I'm just going to...
508
00:55:30,720 --> 00:55:33,120
..ease my way over towards them.
509
00:55:33,120 --> 00:55:34,360
Wait.
510
00:55:39,600 --> 00:55:40,840
OK, this is it.
511
00:55:45,720 --> 00:55:47,920
Yeah!
We did it! We did it!
512
00:55:47,920 --> 00:55:49,400
We did it!
513
00:55:51,320 --> 00:55:52,560
Well done!
514
00:55:57,560 --> 00:55:59,600
Woooo!
515
00:56:00,960 --> 00:56:03,560
We did it. We did it!
I'm so happy!
516
00:56:08,200 --> 00:56:11,080
It's not just the achievement
of getting the tag on,
517
00:56:11,080 --> 00:56:13,960
it's the promise
of what it will reveal.
518
00:56:17,200 --> 00:56:20,840
And that turns out
to be astounding.
519
00:56:20,840 --> 00:56:22,920
Intimate food sharing
520
00:56:22,920 --> 00:56:24,760
and new hunting strategies
521
00:56:24,760 --> 00:56:28,000
have been recorded
for the very first time,
522
00:56:28,000 --> 00:56:32,440
giving us a new perspective
on mammals' lives underwater.
523
00:56:35,360 --> 00:56:38,600
Next time -
we venture into the cold.
524
00:56:38,600 --> 00:56:41,480
A vast and unforgiving world...
525
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..where mammals,
through sheer tenacity
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and adapation...
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..have found a way to make it home.
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