David Attenborough's Natural Curiosities

A Curious Twist

E4    Feb 19, 2013    22m
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The single spiral tusk of the narwhal inspiration for tales of unicorns and the myriad variations on the twist of the snail shell have delighted and fascinated naturalists and artists since the dawn of civilization.
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Cast of A Curious Twist
  • David AttenboroughSelf - Presenter

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