Fragments of a 2.6 million-year-old fossil jaw discovered in northeastern Ethiopia are transforming the picture of early human evolution in Africa. The jaw, from a bipedal hominin — an extinct relative of humans — shows that its kind journeyed far north, to a region where other hominins were already living.
The ancient jaw belongs to the genus Paranthropus and was found more than 620 miles (1,000 kilometers) farther north than any other fossil of its kind.
