The following year Johanson's team discovered 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," which was ...

Lucy quickly became a celebrity of the fossil record. As a kid growing up in Connecticut, Johanson got a book from a neighbor ...

Of all primates living today, only we humans walk fully upright. But Lucy and other fossil finds reveal that more than 3 million years ago, a relatively small-brained, ape-faced human ancestor ...

afarensis (e.g. Lucy). However, “[t]he contemporaneity of the two species now suggests that a more complex family tree prevailed early in the human evolutionary process,” the study authors write.