PATRICK LANDMANN / SCIENCE PHOTO LIBRARY PATRICK LANDMANN / SCIENCE PHOTO LIBRARY
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Paleoanthropologist in Sterkfontein Caves, South Africa. Paleoanthropologist studying fossil layers in the caves where Little Foot was discovered. Little Foot is a nearly complete Australopithecus skeleton found in the Sterkfontein Caves in in 1994-1998. The skeleton is an estimated 3.67 million years old, dated in 2015 by means of a new radioisotopic technique. The recovery of the bones proved extremely difficult, because they were completely embedded in rock. The primate Australopithecus is thought to be an ancestor of humans. Photographed in 2010.
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