A 2.5-million-year-old fossil of a hominin species called Australopithecus africanus had been discovered in South Africa. Lucy’s discovery on Nov. 24, 1974, by paleoanthropologist Donald ...

Among them is Zeresenay Alemseged, a paleoanthropologist at the University of Chicago, who said Lucy is the earliest and most complete human ancestor fossil ever uncovered. The discovery ...

A NASA spacecraft named Lucy ... image of Earth at a distance of 620,000 km. The upper left of the image includes a view of Hadar, Ethiopia, home to the 3.2 million-year-old human ancestor fossil ...

Among them is Zeresenay Alemseged, a paleoanthropologist at the University of Chicago, who said Lucy is the earliest and most complete human ancestor fossil ever uncovered. The discovery ...