Wild Isles — S01E05 — Ocean

00:00:34 Here in Britain and Ireland, we have some of the richest seas in Europe.

00:02:52 with such extraordinary richness and variety.

00:05:52 ROARS

00:08:22 and support an astonishing variety of plants and animals.

00:11:32 The common cuttlefish.

00:14:42 Even the slight swirl produced by a tiny crab as it breathes

00:18:17 The royal flush sea slug.

00:22:01 They have outgrown their hard shells and must now escape from them.

00:24:21 These powerful tidal currents mix-up the water,

00:27:21 It's a surprisingly effective technique,

00:29:46 but here they spend much of their time in the sea.

00:32:29 has been left by his female to look after the eggs.

00:35:27 with the stirring action of the tides and the waves...

00:37:39 are also prey for larger predators...

00:40:39 ..a major part of the global population.

00:43:27 find their food in our seas.

00:45:44 It's just exercising its wings...

00:47:31 Because this is our home,

00:49:35 and looking over my shoulder back at the village -

00:50:52 This unpredictability makes filming in our seas

00:52:23 But we need it to come together into something that we can film,

00:53:46 poor visibility underwater prevents Doug from getting a clear shot.

00:55:16 Since its creation in Lamlash Bay, biodiversity has increased fourfold.

00:56:59 just search Wild Isles on the BBC website.