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Videos / Life On Earth / Narwhals - Unicorns of the Sea







Narwhals - Unicorns of the Sea

Narwhals - Unicorns of the Sea
One of science's greatest riddles is finally solved when Harvard dentist and National Geographic grantee Dr. Martin Nweeia discovers the function of the narwhal whale's unicorn-like tusk.


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Rating: 2.9 / 5 (631 votes)
Posted by kazchen on October 16, 2010
Hits: 3459

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