Dna mutations dating migrations lesson

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is a hominid, it broadens the geographic range from which hominids are known: Lake Chad is well outside the region where previous fossil hominids have been found, and 7 million years ago the environment there would have been a third ancient hominid, which some scientists place in the genus Australopithecus.

The oldest remains of this species, belonging to the subspecies kadabba, are from Ethiopian rocks dated at between 5.2 and 5.8 million years old.

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Michel Brunet's team describe Sahelanthropus as a hominid, for reasons including the shape and angle of the face and skull, and its dentition.Virchow described it as the skeleton of a diseased Cossack cavalryman.And even once the antiquity of the remains was established, many scientists refused to accept that Neandertals could be closely related to modern humans, depicting them instead as brutish and apelike.While we now know that they are fraudulent, at the time (1911) they seemed to demonstrate quite clearly that early humans had a modern was the reverse of a movement that occurred in the late Miocene, when the ancestors of the African apes migrated from Eurasia into Africa.Here they underwent another adaptive radiation, culminating in the divergence of ancestral chimp and hominid populations from their last common ancestor, 7 million years ago.

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