Blue Planet II Season 1 Episode 5 - Green Seas

Airdate: 2017-Nov-26

Episode summary:

In the undersea forests of kelp, algae and sea-grass, there is competition between species and sea otters are seen helping Garibaldi fish protect their seaweed garden from sea urchins while the common octopus uses shells to create a coat of armour against sharks.

About Blue Planet II series:

Wildlife documentary series, presented and narrated by David Attenborough, exploring the planet's oceans.