Today's TV schedules

Planet Earth

Saturday 24/3, 1:30pm - 2:30pm BBC Two
Series 1 Episode 11 Ocean Deep

David Attenborough takes a look at life deep undersea. A 30-tonne whale shark gorges on a school of fish and a unique overhead camera reveals the speed of common dolphins. Descending into the abyss, deep sea octopus fly with wings and vampire squid use bioluminescence to create a colour display. Time-lapse footage from 2,000m down captures eels, crabs and giant isopods eating.

David Attenborough Narrator