Study shows how glaciers affected deer evolution

(PhysOrg.com) -- A 10-year study of mule and black-tailed deer has found unique subspecies created by the animals' responses to climate change thousands of years ago.

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<p><a href="http://www.physorg.com/news157310832.html">Study shows how glaciers affected deer evolution</a></p> <p>(PhysOrg.com) -- A 10-year study of mule and black-tailed deer has found unique subspecies created by the animals' responses to climate change thousands of years ago.</p>