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GAINESVILLE, Fla. — Stephen Chester (left) and Jon Bloch examine the jaw of a new species of carnivorous mammal at the Florida Museum of Natural History on the University of Florida campus on Aug. 18, 2010. The hyena-like animal, Palaeonictis wingi, is described in a new UF study now available online and scheduled to be published in the December print edition of the Journal of Mammalian Evolution. The study shows the species evolved to a smaller size during a global warming event that occurred 55 million years ago. Earth’s temperature increased about 15 degrees Fahrenheit during the 200,000 year period.

(Photo by: Jennifer Duerden/University of Florida)
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