Contact: Stephanie Stone
sstone@calacademy.org
415-379-5121
California Academy of Sciences

Dr. Zeresenay Alemseged, California Academy of Sciences

Caption: Dr. Zeresenay Alemseged, Curator of Anthropology at the California Academy of Sciences, excavates an ancient rhino skull at Dikika, Ethiopia. Alemseged's excavations at Dikika recently unearthed the oldest known evidence of stone tool use among human ancestors.

Credit: Dikika Research Project, California Academy of Sciences

Usage Restrictions: With credit to the Dikika Research Project, California Academy of Sciences

Related news release: Scientists discover oldest evidence of stone tool use and meat-eating among human ancestors