Early human ancestor 'Lucy' was a bad runner, and this one tendon could explain why. ... Lucy used up between 1.7 and 2.9 times more energy than modern humans do to run that fast, ...

What ‘Lucy,’ One of the World’s Most Important Fossils, ... Between 3.9 million and 2.9 million years ago, these early humans lived among the woodlands and forests of eastern Africa, ...

The simulation also showed that Lucy could not run nearly as fast as modern humans, likely reaching top speeds of just 5 meters per second, even after they gave her modern human-type muscles.

Three million years of human evolution began with this face. Scientists put a face to a name in an epic way after digitally recreating the visage of Lucy, humanity’s most famous primate ancestor.

Our early human ancestor was capable of running, if slowly, a new study finds. By Franz Lidz More than three million years after her death, the early human ancestor known as Lucy is still ...

Lucy’s discovery transformed our understanding of human origins. Don Johanson, who unearthed the Australopithecus afarensis remains in 1974, recalls the moment he found the iconic fossil.

NPR's Scott Simon speaks with paleoanthropologist, Donald Johanson, about the 50th anniversary of his biggest discovery, Lucy, an early human ancestor.

By Katie Hunt, CNN (CNN) — Lucy, a fossilized skeleton unearthed 50 years ago this month, transformed scientists’ understanding of human evolution. The discovery by American paleontologist Don ...

CNN: What was Lucy’s significance at the time that she was discovered? Johanson: She was the oldest, most complete hominin known at that time. This was terra incognita in the early ‘70s.

By Katie Hunt, CNN (CNN) — Lucy, a fossilized skeleton unearthed 50 years ago this month, transformed scientists’ understanding of human ...