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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 19:00蜜芽传媒 Two Wales
- Fri 23 Mar 2018 20:00蜜芽传媒 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 19:00蜜芽传媒 Two except Scotland & Wales
- Mon 22 Apr 2019 19:30蜜芽传媒 Two Wales & Wales HD only
- Thu 30 Jul 2020 13:45蜜芽传媒 Two except Scotland
- Fri 1 Sep 2023 16:00蜜芽传媒 Two except Scotland
- Wed 15 May 2024 14:45蜜芽传媒 Two except Scotland