KENNIS AND KENNIS / MSF / SCIENCE PHOTO LIBRARY KENNIS AND KENNIS / MSF / SCIENCE PHOTO LIBRARY
Australopithecus and chimpanzee teeth. Artwork comparing the teeth of an Australopithecus (left) and a chimpanzee (Pan troglodytes, right). The canine teeth of chimpanzees are more developed than those of ancestral humans species such as Australopithecus. Australopithecus is a genus of extinct hominin species that formed an early part of the human evolutionary tree, between 2 and 4 million years ago.
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