Main content
Incredible Shells
Episode 5 of 6
David Attenborough investigates two shells that have proved to be winners in evolution: the tortoise's shell and the shells of birds' eggs.
David Attenborough investigates two shells that have proved to be winners in evolution: the tortoise's shell and the shells of birds' eggs. The ostrich egg is so strong it is possible for a person to stand on it without it breaking, but 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.
Last on
Wed 15 May 2024
14:45
Credits
Role | Contributor |
---|---|
Presenter | David Attenborough |
Executive Producer | Stephen Dunleavy |
Director | Sharmila Choudhury |
Producer | Sharmila Choudhury |
Writer | Sharmila Choudhury |
Producer | Hilary Jeffkins |
Director | Hilary Jeffkins |
Writer | Hilary Jeffkins |
Production Company | Humble Bee Films |
Broadcasts
- Fri 23 Mar 2018 19:0091热爆 Two Wales
- Fri 23 Mar 2018 20:0091热爆 Two except Wales
- Wed 28 Mar 2018 00:15
- Thu 3 May 2018 08:00
- Sun 30 Dec 2018 06:20
- Mon 15 Apr 2019 19:0091热爆 Two except Scotland & Wales
- Mon 22 Apr 2019 19:3091热爆 Two Wales & Wales HD only
- Thu 30 Jul 2020 13:4591热爆 Two except Scotland
- Fri 1 Sep 2023 16:0091热爆 Two except Scotland
- Wed 15 May 2024 14:4591热爆 Two except Scotland