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Terrestrial Origins and Evolution
An artist’s rendition of mastodons, camels and a ground sloth before the environmental changes of the Younger Dryas led to their extinction. Credit: Photo courtesy of Barry Roal Carlsen, University of Wisconsin
09/03/13

 

An artist’s rendition of mastodons, camels and a ground sloth before the environmental changes of the Younger Dryas led to their extinction. Credit: Photo courtesy of Barry Roal Carlsen, University of Wisconsin



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