If the male prairie vole were a human guy, we might call him "highly evolved." Among the world's 5,500 mammalian species, he's among the roughly 5% who, for the most part, mate for life, and who stick around to protect and raise offspring with his mate. He might even pick up a stick or twig around...
via L.A. Times - Science http://ift.tt/1O0lskc
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