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Ancient weapons reveal lost shark diversity

16-08-2012 12:11am

#1

Adam Khor

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http://www.scientificamerican.com/article.cfm?id=shark-tooth-weapons-reveals-lost-biodiversity

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#2 16-08-2012 7:48pm

Birdnuts

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Interesting stuff and highlights how our activities and numbers have been been just as devasting to top marine predators down through the millennia as was the case for their terrestrial counterparts.

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