Fossil jaw sheds light on turning point in human evolution

Post date: Mar 5, 2015 2:43:32 PM

By MALCOLM RITTERAP SCIENCE WRITER MARCH 05, 2015

Various views of the jawbone fragment, which was found in Ethiopia.

ASSOCIATED PRESS

Various views of the jawbone fragment, which was found in Ethiopia.

NEW YORK — A fragment of a jawbone found in Ethiopia is the oldest known fossil from an evolutionary tree branch that eventually led to modern humans, scientists reported Wednesday.