5b - PRIMATE UNQIUE TRAITS Overview 1 The morphological and...

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1 PRIMATE UNQIUE TRAITS Overview: 1. The morphological and behavioral traits that differentiate primates from other mammals. 2. Hypotheses about the origins of the primate unique traits Primate Morphological and Behavioral Traits Differentiating Them from Other Mammals A. Hands B. Locomotion C. Senses Brain and Behavior D. Vision E. Teeth and Diet F. Reproduction and care of offspring G. Social Structure A. Primate Grasping Hands: The Preservation of Generalized Hand Structure 1. 5 flexible digits & opposable thumbs used for grasping. 2. Prehensile (grasping) hands and feet 3. Replacement of sharp, compressed claws by flat nails 4. Development of very sensitive tactile pads on the digits
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2 A. Primate Grasping Hands: a. 5 flexible digits & opposable thumbs used for grasping. b.Prehensile (grasping) hands and feet c.Replacement of sharp, compressed claws by flat nails. d.Development of very sensitive tactile pads on the digits A. Primate Grasping Hands: Forms of Arboreal Primate locomotion (a) Vertical locomotion (b) leaper locomotion
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3 Forms of Arboreal Primate locomotion (c) semi-brachiation (d) brachiation Forms of Arboreal Primate locomotion Quadrupedal locomotion B. Locomotion Semi- Brachiation Semi- brachiation involves a combination of leaping with some arm swinging & the use of a prehensile tail , which in effect serves as a marvelously effective grasping fifth "hand." This mode of locomotion is used by New World monkeys only .
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4 OVERVIEW OF PRIMATE LOCOMOTION Reproduction and care of offspring •small number of offspring (single births, long inter-birth interval) and
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This note was uploaded on 11/18/2009 for the course ANTHRBIO 161 taught by Professor Mitani during the Spring '08 term at University of Michigan.

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5b - PRIMATE UNQIUE TRAITS Overview 1 The morphological and...

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