Frozen Planet II — S01E04 — Frozen South

00:00:35 DAVID ATTENBOROUGH: At the far south of our planet

00:02:48 A mother has returned after a month at sea...

00:05:18 But this is a dangerous place to loiter.

00:08:43 The Sub-Antarctic Islands of the Antipodes.

00:11:25 ...and shows off...

00:14:19 As a result, the female albatross here

00:17:18 but thanks to an international ban

00:19:53 This is the coldest water on Earth.

00:22:32 to haul himself out without his mother's help.

00:25:45 The chicks' feathers are not yet waterproof.

00:28:51 Hypothermia sets in.

00:31:04 Killer whales are among the most intelligent

00:33:05 but to target new prey.

00:36:32 Unlike the less muscular Weddell seal,

00:39:26 whether these skilful hunters can adjust quickly enough

00:41:50 But isolated outcrops of rock

00:44:48 From here to the South Pole, 1,000 miles further inland...

00:47:43 scientists dived beneath its frozen surface...

00:49:48 of Antarctica, capturing the remarkable behaviour

00:51:00 on the only killer whales in the world

00:52:33 launches the drone to capture a new perspective

00:53:52 to become this very efficient killer.

00:55:05 They approach one of Antarctica's

00:56:32 we can't allow to happen.