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(a) Chimpanzees and (b) bonobos likely diverged from a common ancestor due to allopatric speciation
Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini
Apidium may be ancestral to all later higher primates and is reconstructed as looking like a small-b
Sivapithecus is a Miocene ape (middle) with anatomical similarities to orangutans (left) rather than
To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad
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