ANT101H5 Chapter Notes - Chapter 6: Quadrupedalism, Omnivore, Thumb

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2)flexible, generalized limb structure, which allows most primates to practice various locomotor behaviours. 2)generalized dentition: the senses and the brain. 2)depth perception: a)eyes placed toward the front of the face, b)visual information from each eye transmitted to visual centres in both hemispheres of the brain c)decreased reliance on the sense of smell. 4)expansion and increased complexity of the brain: maturation, learning, and behaviour. 1)a more efficient means of fetal nourishment, longer periods of gestation, reduced numbers of offspring (with single births the norm), delayed maturation and extension of the entire life span. 3)the tendency to live in social groups and the permanent association of adult males with the group. The group characteristics shared by primates has been explained as the result of an adaptation to arboreal (tree-living) living this dietary shift enhanced a general trend toward omnivory. >grasping hands and feet are adaptation of the arboreal lifestyle.

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