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Shark-Tooth Weapons Reveal Lost Biodiversity


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Author: Ed Wong

Source: Nature

August 13, 2012

"For centuries, the people of the Gilbert Islands in the central Pacific Ocean have crafted weapons from shark teeth. Joshua Drew, a conservation biologist at Columbia University in New York, has used these teeth to show that the waters around the islands — part of the Republic of Kiribati — were once home to three species of shark that no longer live in the area.

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