A close up view of the fossil  just steps from where it was discovered by Chalachew Seyoum. Photo by Brian Villmoare. A fossil lower jaw found in the Afar Region of Ethiopia pushes back evidence for the human genus Homo to 2.8 million years ago. The jaw with five teeth was found by Chalachew Seyoum, a Baldwin Fellow and Arizona State University paleoanthropology graduate student from Ethiopia.… more »