A few years ago there were reports of a new great ape in the Congo, perhaps a chimp-gorilla hybrid. As the story unfolded it seemed more and more plausible that this was a local morph of the common chimpanzee, and genetic tests have confirmed that hunch. It is a subspecies of common chimpanzee, though with unusual morphological features. The latter is important, we see a wide range of phenotypes among humans across small distances, so it should not surprise if chimpanzees also exhibit variation.
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Guest post by Brian Hare, Evolutionary Anthropologist at Duke University
The story of 'How we know where HIV-1 came from' is really cool-- A group of researchers went into the jungles of Africa, collected lots of monkey poop, and figured out pretty much the exact colony of chimpanzees that
I know that a bunch of other people covered this story, but I managed to find a video of it so I thought I would post it anyway.