23 agos 3900000 año aC - Australopithecus (name means southern ape)

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source:1
http://humanorigins.si.edu/evidence/human-fossils/species/australopithecus-afarensis

source2: http://eol.org/pages/4454141/details


they stayed in southern africa did not migrate far


fact 1:they could not leave africa because of a limited food source
fact 2:they where the first to be bipedal
fact 3:they were still much like apes

the Australopithecus sloped fore head shows that they have tiny brain

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