Musk Ox Population Decline Due to Climate, Not Humans, Study Finds (IMAGE)
Caption
Scientists have discovered that the drastic decline in Arctic musk ox populations that began roughly 12,000 years ago was due to a warming climate rather than to human hunting. The research is the first study to use ancient musk ox DNA collected from across the animal's former geographic range to test for human impacts on musk ox populations. The research is published in the early online edition of the journal Proceedings of the National Academy of Sciences sometime during the week ending Friday March 12.
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Tim Bowman, US Fish and Wildlife Service
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