Unit 5 – Primates And Primate Evolution – Biology

Unit 5 order order Primates and Primate development biology Lecture Notes I. Introduction a. Primates atomic human action 18 a convention 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 particular(prenominal) adaptive strategy c. In addition, order Primates occupy all(prenominal) 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 mention abide posture v. retention of the clavicle 2) Dentition and fast i. generalized dental pattern intentional for varied nutrition ii. omnivorous subsistence pattern 3) Cranio-Neurology and Behavior i. reduction of snout and de-emphasis of olfactory senses ii. increase emphasis on passel and stereoscopic vision* iii. change magnitude complexity of the brain iv. increased enatic investment v. increased dependency on learned port vi. greater group cohesion vii.

adult males permanently associated with the group *stereoscopic vision: when visual fields of each pith point of intersection and sensory information from each heart and soul is relayed to both sides of the brain, allowing abstrusity perception & accurate distance assessment III. Explanations for Primate Evolutionary Trends a. treelike Adaptation Hypothesis 1) The primates adaptation to an arboreal niche is chiefly responsible for nearly of the un! ique primate evolutionary trends 2) structural characteristics such as dentition, diet, locomotory patterns, and limb architecture are all due in some measure to the adaptation of look in the trees. 3) physiological 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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