Unit 5 – Primates And Primate Evolution – Biology

Unit 5 order order Primates and Primate ontogenesis biology Lecture Notes I. Introduction a. Primates atomic snatch 18 a concourse of mammals that includes monkeys, apes, and humans. b. They are atypical as a group in that they take up a generalized form that is not specialized for altogether item adaptive strategy c. In addition, order Primates occupy any environmental niche on the planet, from the tropics to the artic. II. Primate Evolutional Trends a. Primates are distinguished by three main evolutionary trends 1) Limbs and Locomotion i. pentadactyly ii. nails instead of claws iii. prehensile hands and feet iv. ability to get abide posture v. retention of the clavicle 2) Dentition and regimen i. generalized dental pattern intentional for varied pabulum ii. omnivorous subsistence pattern 3) Cranio-Neurology and Behavior i. reduction of snout and de-emphasis of olfactive senses ii. increase emphasis on imaging and stereoscopic vision* iii. change magnitude complexity of the brain iv. increased maternal(p) investment v. increased dependency on learned air vi. greater group cohesion vii.

adult males permanently associated with the group *stereoscopic vision: when visual fields of each heart point of intersection and sensory information from each ticker is relayed to both sides of the brain, allowing abstrusity perception & accurate distance love III. Explanations for Primate Evolutionary Trends a. treelike Adaptation Hypothesis 1) The primates adaptation to an arboreal niche is chiefly responsible for close to of the uniq ue primate evolutionary trends 2) struct! ural characteristics such as dentition, diet, locomotory patterns, and limb architecture are all repayable in some measure to the adaptation of look in the trees. 3) physiologic characteristics such as increased dependency on vision, stereoscopic ability, reduction of the snout and de-emphasis on olfactory senses are due to...If you want to get a replete essay, order it on our website: BestEssayCheap.com

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