Specimens of 12 million-year old alligator and rhinoceros teeth
Specimens of 12 million-year old alligator (left) and rhinoceros fossil teeth from the Florida Museum of Natural History collections.
[This research was funded in part by a National Science Foundation grant.]
Learn more in the Florida Museum of Natural History news story New study first to directly measure body temperatures of extinct species. (Date of Image: May 2010)
Credit: Jeff Gage, Florida Museum of Natural History, University of Florida
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