"Key features in the human body plan evolved specifically for improved running performance." The new study is the first time researchers have directly estimated running ability in Lucy's species ...

It proved to be the first of 47 bones of a single individual – an early human ancestor whom Johanson nicknamed “Lucy.” Her discovery would overturn what scientists thought they knew about ...

Lucy and other members of her species could walk well because their hip and knee joints were more like humans' than like chimps'. The very first fossils of this species -- found by ...

The first sign that there might be a different ... another fossil that is still a landmark in the story of human origins. "Lucy" -- named for the Beatles song "Lucy in the Sky with Diamonds ...