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David Attenborough's Natural Curiosities
05:30 am - 06:00 am Tuesday, September 29
Incredible Shells
Season 4 · Episode 5
The veteran naturalist investigates two shells that have proved to be winners in evolution - the bird's egg shell and the hard shell of the tortoise. The ostrich egg is so strong it is possible for it to take a person's weight without breaking - so how does a chick manage break out of such a fortress? The evolution of the tortoise shell was for a long time a mystery, and this bony box offers a lot more than just protection
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David Attenborough's Natural Curiosities Cast & Crew
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- David Attenborough — Presenter
- Hilary Jeffkins — Director
- Stephen Dunleavy — Executive producer
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