A study in the wild of social behavior among man's closest relatives, the anthropoid apes, was released last week by Psychologist Clarence Raymond Carpenter of Pennsylvania State College. Overlooking such obvious candidates as the gorilla and orangutan, he chose to study the small (14 lb.), long-armed gibbon, which walks and runs on the ground "with greater ease than any other primate except man," whose head, like man's, "combines a fairly large brain part with a relatively small face." In the forests of northwest Siam (Thailand) toward the Burma Road, Psychologist Carpenter spent four...
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