Secrets of Skin

Biologist Ben Garrod examines the evolution of skin - the largest organ in any creature's body - across all species of the animal kingdom, beginning by looking at how that of vertebrates has allowed them to conquer the planet.

Wednesday, 21 October 1 airing
19:00
BBC Four
S1 E1 · Adaptability
Thursday, 22 October 2026 1 airing
00:30
BBC Four
S1 E1 · Adaptability