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David Attenborough's Natural Curiosities

4 Season
27 Episode

David Attenborough's Natural Curiosities - Season 4 Episode 5 Incredible Shells


(18 votes, average: 7.32/ 10)

22 minutes 2025 HD

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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.

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