Fossil defines ASU professor's life

Donald Johanson is known as the man who, in 1974, discovered Lucy – the oldest, most complete skeleton of an adult ancestor of humans. Now, as director of ASU's Institute of Human Origins, Johanson oversees seven scientists who have generated their own recent headlines. He, though, will forever be identified with Lucy and will always wrestle with the riddles the fossil continues to pose.Article source: Arizona Republic