Ethiopian Fossils Represent New Member of Human Family Tree

Jaw and teeth fossils found on the silty clay surface of Ethiopia's Afar region represent a previously unknown member of humankind's family tree that lived 3.3 to 3.5 million years ago alongside the famous human ancestor "Lucy," scientists say. The fossils shed new light on a key period in the human lineage's evolution before the emergence of our genus Homo and provide the first evidence that two early human ancestor species lived at the same time and place prior to...

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