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Nickname for a remarkably complete (40% intact) hominin skeleton found by Donald Johanson at Hadar, Eth., in 1974 and dated to 3.2 million years ago. The specimen is usually classified as Australopithecus afarensis and suggestsby having long arms, short legs, an apelike chest and jaw, and a small brain but a relatively humanlike pelvisthat bipedal locomotion preceded the development of a larger (more humanlike) brain in hominin evolution. Lucy stood about 3 ft 7 in. (109 cm) tall and weighed about 60 lbs (27 kg). See alsoHadar remains; Laetoli footprints; Sterkfontein.
This entry comes from Encyclopædia Britannica Concise. For the full entry on Lucy, visit Britannica.com.
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