David Attenborough's Natural...

BBC TWO

Friday 1 September 2023  16:00 - 16:30 (30 mins)
...Curiosities. 5/6. David Attenborough investigates two shells that have proved to be winners in evolution: the tortoise's shell and the shells of birds' eggs. Also in HD. [S,AD]

David Attenborough's Natural... may be available on playback
David Attenborough's Natural... (BBC TWO) Friday 1 September 2023 16:00 - 16:30