Our understanding of human ancestry has changed dramatically since the discovery of Lucy the ancient hominin 50 years ago.

The thinking of early theorists was that our evolution was a coordinated, linear process. Our ancestors’ brains grew steadily ...

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.

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

It was exactly 50 years ago on Nov. 24, 1974 that white men from America, France and Britain on a scientific expedition in ...

Paleoanthropologists have learned a lot about Lucy, the world’s most famous hominin fossil, since she was discovered in 1974.

The 3.2-million-year-old fossil, discovered 50 years ago, is considered to be one of the most significant early hominin ...

Lucy was discovered in 1974 in Ethiopia and when she was found 50 years ago, she was the oldest known human specimen in existence. The remains of the proto-human are 3.18-million-year-old and they ...

On the anniversary of Lucy’s discovery, paleoanthropologists reflect on what she means to science, and what she taught us ...

The 3.2-million-year-old human ancestor known as Lucy sparked a revolution in scientists’ understanding of the origins of ...

Yohannes Haile-Selassie is responsible for some of the most remarkable ancient human fossil discoveries in his home country.