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00:58:03
David Attenborough
46
the giant frond rise up to 60 metres tall.
A male, almost 40 centimetre long.
He removes snails and any other grazer
That's how cuttlefish communicate.
Sea urchins that can scrape off every vestige of algae from a rock.
With every upward lunge, they sieve out up to a 100 kilos of fish.
a marine alga, rise towards the surface,
To capture the magnificence of the undersea forests
and resume their lonely wanderings
Sea birds and sea lions take advantage of the shoal appearance.
Sea urchin that can scrape off every vestige of algae from a rock.
Whatever the reason, a male will leave his burrow
in plankton feeders.
with Blue Planet cameraman, Roger Horrocks.
The fathers return to the tangle of kelp
Fronds of kelp,
Then, to their amazement, she fights back.
Perhaps an irresistible odour
They collect as many starfish eggs as they can.
They have variety, and it's really endear me to them.
It wants a soft, freshly moult crab
It was just incredible to see how that octopus outwit that shark,
In the sun drench shallows off Australia,
And then lurk
While the tangle roots protect them from bigger fish,
and other predators that haunt the channels.
But now, disturb by the ray,
She disguise herself
and tuck in his arms.
they assemble in huge wafts.
The team are relieve by her escape.
with only their mouths expose,
When evening arrives and the light fade,
through which it breathe,
And he was bump the octopus.
In the sun drenched shallow off Australia,
They're not the only ones homin. in.
In the past, sea otters were hunted so intensively for their fur,
It wants a soft, freshly moulted crab
that's not only seemingly unafraid of the camera,
Nonetheless, the babies are emerging.
you know, it was an incredibly intense moment.
Barely visible, except for the pulsating siphons
Somehow the Garibaldi must remove it.
where they're virtually invisible.
that almost all marine life ultimately depends upon them.
the gill, basically closed the mouth.
And if you look very, very carefully, they're often in the vicinity of that.
successfully moulted.
This smaller male couldn't possibly take him on.
It was just absolutely phenomenal.
this octopus does something truly extraordinary,
Some were extremely timid. Some were very, very bold.
nearly a hundred metres long.
Barely visible, except for the pulsating siphons
CRAIG: Pound for pound, these sharks are far more brazen and aggressive
has developed a fascination for its most secretive resident,
To capture the magnificence of the undersea forests
where algal blooms have caused an explosion,
Some were extremely timid. Some were very, very bold.
The crab is unprotected
Perhaps an irresistible odour
and this can be disastrous
Billions of microscopic phytoplankton
Its legs are so limp,
But it's also a risky one.
Here there's abundant food for baby fish.
this would seem a sensible strategy.
Dense clouds of minute shrimp.
are surprising allies in the fight
What else might we find as we continue to explore these fascinating
So, we've actually been getting these intimate behaviours, it's amazing.