David Attenborough's Natural Curiosities

Sir David shines the spotlight on some of nature's evolutionary anomalies and reveals how these curious animals continue to fascinate.

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Incredible Shells

Episode 4x05; Jun 25, 2017

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 chi

Previous Episodes

Episode NameAirdateTrailer
4x04: Curious CountersJun 18, 2017
4x03: Extreme BabiesJun 18, 2017
4x02: Finding the WayJun 11, 2017
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