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Unformatted text preview: 5 digits on hands and feet Opposable thumb + big toe Nails instead of claws Sensory pads at ends of digits Lack of dietary specialization-omnivorous Reliance on sense of vision o Color vision (nocturnal primates color blind) o Binocular vision o Stereoscopic vision (information from eyes goes to both sides of the brain) o 3D o Depth perception Decreased reliance on the sense of smell Expansion and increased complexity of the brain Longer gestation and maturation periods and longer life span Greater dependence on learned behavior Tendency to live in social groups Tendency for diurnal activity Dentition Evolutionary trend is reduction in number and size of teeth o 3-1-5-3 = early mammals o 2-1-4-2 = early fossil primates o 2-1-3-3 = new world monkeys and Prosimii o 2-1-2-3 = old world monkeys and hominoidea Y5 in molars...
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- Winter '09