Secrets of Bones

Evolutionary biologist Ben Garrod uncovers the ways that the skeleton aids flight, looking at what makes the humble pigeon a skilled flier and how albatrosses manage to complete long migration journeys. He also explores why some birds have dense bones, and reveals which airborne animal he believes is the 'ultimate'

Today · Thursday, 15 October 2 airings
00:35
BBC Four
S1 E4 · Sensing the World
19:00
BBC Four
S1 E5 · Food for Thought
Tomorrow · Friday, 16 October 1 airing
01:15
BBC Four
S1 E5 · Food for Thought
Tuesday, 20 October 1 airing
19:00
BBC Four
S1 E6 · Sex
Wednesday, 21 October 1 airing
00:20
BBC Four
S1 E6 · Sex