An unidentified early hominin fossil that might be a new species confirms that Australopithecus and Homo species lived in the same region of Africa in the same time frame.
Roughly 2.6 million-year-old fossilized teeth found in Ethiopia might belong to a previously unknown early human relative, researchers say.
The teeth are from a species of Australopithecus, the genus that includes Lucy (A. afarensis). But these newly... [6155 chars]