ANTH 1001Feb22

ANTH 1001Feb22 - shorter arms than legs pattern ring tailed...

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ANTH 1001 Feb.22 Primate Characteristics Relative to Other mammals Limbs and Locomotion Erect posture- especially whir sitting; generally see in primates Hands and feet- o generally have 5 digits on all limbs; o at least one of the digits is apousibe; a grasping grip; o most primates have an apposible toe; o have nails and not claws o sensory nerves in finger tips that helps with grasping o Prehensile Flexible limb structure-_______ allows for wide range of movement Primate Locomotion 1. Quadrupedalism – moving around on all four limbs (knuckle walking, slow climbing) o Intermembral Index- compares length of fore limbs to length of hind limbs (arms to legs)multiply by 100 if number greater than 1 longer arms than legs-terrietial, less than 1
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Unformatted text preview: shorter arms than legs- ______; pattern; ring tailed lemur; chimps; humans DON’T follow 2. Leaping/ Jumping o Uacari o Small animals have powerful hind limbs usually o Sifaka 3. Brachiation o Arm swinging; alternating the weight of body from forelimbs 4. Bipedalism- walking on two feet o Bonobo Senses and the Brain An increased reliance on vision; primate have color vision and depth perception and eyes that face forward of anteriorly; a decreased reliance on smell • increased reliance on vision • Decreased reliance on smell • Encephalized- Big brains relative to size of body • Complex brain...
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