Oceans

00:01:24 CHILDREN CHATTERING AND LAUGHING

00:02:53 and most of us only ever experience a small part of it.

00:05:28 it seems like all of nature got out of whack.

00:08:04 and a splash of sunlight and color.

00:12:12 but plenty of sardines survive, so life can go on.

00:16:01 The ocean belonged to them.

00:20:18 And each mother gently nudges her baby to the surface

00:22:51 [SQUEALING]

00:28:02 Already the crab is on the prowl.

00:30:30 Some try to blend into the landscape.

00:35:04 once grew on dry land as well.

00:39:17 clownfish hide in her tentacles.

00:42:03 As tempting as it may be

00:46:48 Humpbacks set out on their long journey

00:48:59 The yellowfin tuna can make some serious time

00:53:01 There are still unspoiled places

00:55:10 The sea provides not only food and shelter, but wide-open spaces.

00:58:40 Through overfishing and bottom trawling

01:03:56 We watch her now all the time.

01:05:39 The leopard seal still reigns supreme in the Antarctic.

01:09:38 this is where you'll find the narwhal

01:12:50 Yet never has the will to protect them been so strong.

01:16:34 even companions for an afternoon swim.