Lucy may well be the world's most famous fossil hominid. She is the best-known specimen of the species Australopithecus afarensis , and her partial skeleton, found in 1974, revealed that she and her kin could walk upright.
But because of a lack of foot bone specimens, scientists have long debated how well she walked that is, whether A. afarensis also used a grasping movement with the feet, as apes do when they grab tree branches.
Now, a fossilized foot bone from Hadar, Ethiopia, reveals that
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Researchers from the University of Missouri and Arizona State University report these findings in the journal