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00:57:53
David Attenborough
207
Their calf seems reluctant to do so.
If the trevally are to catch one now,
Gorgonia frond, in fact, are covered with a mucous
and for the sheer exhilaration of it.
And in the tangled undergrowth,
even in the depths of midwinter,
The fjord of northern Norway remain ice free
They approach the shoal from beneath and then lunge upwards,
from much of the walrus' traditional range,
On the forest floor, spiny sea urchin munch through the kelp.
for that is when vast swarms of plankton rise from the depths.
A daunting prospect for surf cameraman, Chris Bryan.
that have remained relatively stable for millennia
Giant kelp, the biggest seaweed of all is home to all kinds of life.
we have spent a thousand hours in submersible
over half a million tern
gathering up to a hundred kilo of herring in a single mouthful.
They, together with seaweed and seagrasses,
The spin of the earth deflect these storms
the more it intimidate an opponent.
And in the tangle undergrowth,
so the film crew enlist local professional surfers to guide them.
seasonal seas flourish under the summer sun.
where creatures thrive,
to just kind of weave their way out.
And here, the adults behave rather strangely.
They deliberately rub themselves through the fronds.
We've also recognise an uncomfortable fact.
particular enzymes inside her body cease to work,
Heard a big bump and almost bounce off
which bloom on such a massive scale they benefit us all.
The walruses retreat into the sea.
Only the largest females transform themselves in this way.
attract by this abundance of potential prey.
Mobula rays have gather in Mexico's Sea of Cortez
The false killers have detect them.
A desperate mother has no choice but to barge her way in.
It's difficult for some of them to stay aloft for long.
Almost unbelievably, it seems that these different species
So there is a fish here that amazingly
They deliberately rub themselves through the fronds.
The oceans, seemingly limitless,
Nonetheless, few if any of these riches
Nowhere is this more evident than in the Arctic.
It's possibly the greatest gathering of orca on the planet.
that have remained relatively stable for millennia
The conditions are absolutely perfect. It's what we've been waiting for.
But to properly appreciate their true character,
But then, something truly extraordinary happens.
They're extremely intelligent.
At last, he's in exactly the right place at exactly the right time.
And in female terms, he's particularly handsome.
invoke in us a sense of awe and wonder and also sometimes fear.
others aren't quite ready yet.
But a herd of hundreds of quarrelsome mothers,
wonderfully camouflaged sea dragons.
The disturbance in the water stimulates many of the planktonic creatures
Much larger than the diminutive female,
Gorgonia fronds, in fact, are covered with a mucous
These are treacherous seas,
And then the senseless victims are easily collected.
but, yeah, it was hectic.
The herring maybe plentiful but in these winding fjords
A daunting prospect for surf cameraman, Chris Bryan.
This formidable hunting party now harvests the riches
The richness of these waters is based on microscopic plants,
maintaining a climate favourable for life almost everywhere.
But the sea is an unpredictable and dangerous place to work.
they rise into gigantic waves.
DAVID: The inflatable boat gives Chris a larger,
Their calf seems reluctant to do so.
We've also recognised an uncomfortable fact.