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| | William H. Calvin, Great Ape Portraits (2005) |
 | | Apes are a branch of the Old World Monkeys that lost their tail, evolved very versatile shoulder joints, and doubled brain size. |
 | | Apes are "super monkeys" and humans are "super apes," having developed upright posture in the last 6 million years and then tripled brain size over that of the great apes starting about 2.5 million years ago. |
 | | Even in the lesser apes, one seldom sees the postures and facial expressions, so reminiscent of humans, that are frequent in the great apes (gorillas, orangutans, chimpanzees, and bonobos). |
| williamcalvin.com /portraits/apes.htm (649 words) |
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