Ancient Patagonian rodent DNA provides clues to the evolution of social behavior

A rare Patagonian rodent known as the colonial tuco-tuco fascinates biologists because it seems to defy all odds. This threatened species has so little genetic diversity that the slightest whiff of climate change or disease should have wiped it off the face of the earth long ago.

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<p><a href="http://www.physorg.com/news65288345.html">Ancient Patagonian rodent DNA provides clues to the evolution of social behavior</a></p> <p>A rare Patagonian rodent known as the colonial tuco-tuco fascinates biologists because it seems to defy all odds. This threatened species has so little genetic diversity that the slightest whiff of climate change or disease should have wiped it off the face of the earth long ago.</p>