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Why are primate's brains large?
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| Submitted: Mon Feb 02 2004
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Why are primate's brains large? What is a primate? Primates have been classified into 4 different groups. These are the prosimians, new world monkeys, old world monkeys and apes. A breakdown of each group can be seen below. Prosimians * Lemurs * Galagos * Lorises * Tarsiers New World Monkeys * Callitrichids: marmosets, tamarins * Cebids: woolly monkeys, spider monkeys, squirrel monkeys, howler monkeys, capuchin monkeys Old World Monkeys * Cercopithecines: baboons, macaques, guenons * Colobines: colobus, langurs Apes * Great apes: gorillas, chimpanzees, bonobos, orang utans, humans * Lesser apes: gibbons, siamang The biological definition for primates is that it is the order of mammals that includes tree shrews, lemurs, monkeys, gibbons, apes and humans. Primates are largely arboreal (i.e. they live up in the trees) and have limbs modified for climbing, leaping or swinging. They have large brains in relation to their body weight and other mammals and generally have highly defined sight, often having stereoscopic vision. I plan to suggest...
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