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In the Afar Valley in 1974, a fossil, nicknamed “Lucy”, was discovered and given the species name of Australopithecus afarensis. “Lucy” was uncovered by Donald Johnson, and was dated about 3.2 million years old. Many other specimens of the same species have been found, dating back to 3.9 million years ago. Another species, Australopithecus africanus, have been discovered and are very si