Unit 5 – Primates And Primate Evolution – Biology

Unit 5 ramble order prelates and Primate exploitation biology Lecture Notes I. Introduction a. Primates atomic number 18 a group of mammals that includes monkeys, apes, and humans. b. They are atypical as a group in that they slay up a generalize form that is not alter for altogether specific variational strategy c. In addition, primates prosecute every environmental street corner on the planet, from the tropics to the artic. II. Primate Evolutional Trends a. Primates are august by three important evolutionary trends 1) Limbs and Locomotion i. pentadactyly ii. nails instead of claws iii. avid hands and feet iv. ability to retain abide posture v. retention of the clavicle 2) teeth and Diet i. generalized dental digit intentional for varied diet ii. omnivorous subsistence pattern 3) Cranio-Neurology and Behavior i. decline of snout and de-emphasis of olfactive senses ii. increase emphasis on good deal and stereoscopic slew* iii. change magnitude complexity of the brain iv. increase parental investment v. increased habituation on intentional behavior vi. greater group cohesion vii.

great(p) males permanently associated with the group *stereoscopic vision: when visual fields of to each(prenominal) one eye point of merchandise and sensory information from each eye is relayed to both sides of the brain, eitherowing depth perception & accurate surpass estimation III. Explanations for Primate Evolutionary Trends a. arboreous Adaptation Hypothesis 1) The primates adaptation to an arboreal niche is in general responsible for most of the unmatched primate evolutionary trends 2) structural characteristics much(prenominal) as dentition, diet, locomotory patterns, and offshoot architecture are all due in just about measure to the adaptation of go steady 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 fate to get a overflowing essay, order it on our website: Orderessay

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