Fifty years ago, the discovery of a human ancestor "Lucy" generated worldwide attention. NPR's Scott Detrow speaks with paleoanthropologist Zeray Alemseged about the legacy of the discovery.

But much later, when I joined high school, maybe college, is when I became aware ... assigned to work at the National Museum of Ethiopia where Lucy was housed in. The office I was assigned to ...

Stunning Discovery of ‘Lucy’ Fossil Revealed Humans Were Walking On Feet 3.2 Million Years Ago Experts find human evolution a ...

Explore key historical events from Nov. 24-30: from JFK's assassin being shot on live TV, to the mysterious D.B. Cooper ...