Biology - Primates
The different kinds of primates living today are thought to have evolved
over the last 65 million years - since the extinction of the dinosaurs.
Combined evidence from fossils, DNA hybridisation  and biochemical
analysis suggests that humans shared a common ancestor with chimpanzees.
The split in the evolutionary line occurred about 5-6 million years ago
(mya). What happened following the split is not entirely clear, as there
are different interpretations of the evidence and new evidence is
accumulating, giving rise to re-classification. The evolutionary line is in
fact a series of diverging branches some of which are dead ends.
The human line diverged from the African ape line (gorillas and
chimpanzees) about 10 mya. There is no suggestion that humans descended
from chimpanzees and gorillas only that they shared a common ancestor at
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