![David Attenborough's Natural Curiosities](https://image.tmdb.org/t/p/w342/uzQAFloohsMyhNyuOgiProDKoOK.jpg)
4 Ràithe
27 Episode
David Attenborough's Natural Curiosities - Season 4 Episode 5
David Attenborough investigates two shells that have proved to be winners in evolution: the bird’s shell and the hard shell of the tortoise. The ostrich egg is so strong it’s possible for a person to stand on it without it breaking – how does the chick break out of this 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.
- Bliadhna: 2017
- Dùthaich:
- Seòrsa: Documentary
- Stiùidio: Eden, U&W
- Faclan-luirg: nature, evolution
- Stiùiriche:
- Cast: David Attenborough