Secrets of Bones

BBC FOUR

Thursday 5 January 2017  19:30 - 20:00 (30 mins)
3/6. Into the Air: Ben Garrod finds out how the skeleton has allowed vertebrates to take to the air and why the pigeon is an exceptional flier. Also in HD. [S]

Secrets of Bones may be available on playback
Secrets of Bones (BBC FOUR) Thursday 5 January 2017 19:30 - 20:00