HENNING DALHOFF / SCIENCE PHOTO LIBRARY HENNING DALHOFF / SCIENCE PHOTO LIBRARY
Australopithecus afarensis. Computer artwork of an A. afarensis hominid based on fossil evidence (AL 288-1) found at Hadar, Ethiopia, in 1974, and named 'Lucy'. Lucy's skeleton has been dated to 3.3 million years ago. The form of the pelvic bones showed her to be female, erupted wisdom teeth suggested she was 20 years old, and the thigh-bone indicated she was small, between 107 and 122 centimetres tall.
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