BBC Earth

Episode 8 – Creatures of the deep

Preview

Life takes a journey to the uncharted corners of the ocean. It's here that the newest discoveries are being made and the strangest creatures live, from huge spider crabs which gather in their thousands, seeking safety in numbers as they shed their protective shell, to cross-dressing giant squid. Join a 250-strong pack of hunting Humboldt squid, see the ultimate self-sacrifice of a Pacific giant octopus mother who starves to death tending her young, and dive under the permanent ice of Antarctica to see a seething carpet of starfish as they devour a seal pup carcass.

Preview next episode.