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Unformatted text preview: and DNA evidence suggests a split of the hominid from hominoid line about 6 to 8 million years ago. Australopithecus afarensis , the first of the human-like hominids we know of, first appeared about 3.6-4 million years ago. This species had a combination of human (bipedalism) and apelike features (short legs and relatively long arms).The arm bones were curved like chimps, but the elbows were more human-like. Scientists speculate that A. afarensis spent some time climbing trees, as well as on the ground. Australopithecus ramidus is an older species, about 4.4 million years, and is generally considered more anatomically primitive than A. afarensis . The relationship between the two species remains to be solved....
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- Fall '10
- Biology, Hominidae, New World Monkeys, Ape