Contact: Diana Yates
University of Illinois at Urbana-Champaign
Caption: Ambrose analyzed the teeth of two dozen mammal species found in the same ancient soil layer as Ardipithecus in order to help reconstruct its environment. A modern hippopotamus tooth is pictured.
Credit: Photo by L. Brian Stauffer, U. of I. News Bureau
Usage Restrictions: Photo may be used only with stories about the research described in the news release. Please credit: Photo by L. Brian Stauffer, U. of I. News Bureau.
Related news release: Early hominid first walked on 2 legs in the woods