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Natural World

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60 min
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Season 23, episode 5

Hammerhead
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
Release date: 2 December 2004
Network:
Natural World