Natural World

Natural World

Hammerhead (23x4)


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Profile of the hammerhead shark, which has until now been shrouded in mystery as no-one could understand why its head is such a strange shape, or how it might help the creature's survival. Marine biologists in Hawaii explain how the fish utilises the unusual shape to give it a unique, deadly weapon in the oceans. Narrated by Ian Holm

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  • : 536
  • : 20
  • BBC Two
  • Måndag 21