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Contact: Claudia Morain
cmmorain@ucdavis.edu
530-752-9841
University of California - Davis
Caption: A chimpanzee walks upright on a treadmill as part of UC Davis anthropologist Michael Sockol's research into the origins of bipedalism. The face mask helps scientists measure oxygen consumption.
Credit: Copyright Cary Wolinsky
Usage Restrictions: Must include photo credit and copyright.
Related news release: Study sheds light on why humans walk on two legs
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