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U of M ANTH 1001 - Lecture 11 10-17-17 Primates (15 pages)

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Lecture 11 10-17-17 Primates



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Lecture 11 10-17-17 Primates

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Pages:
15
School:
University of Minnesota- Twin Cities
Course:
Anth 1001 - Human Evolution
Human Evolution Documents

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ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 1 Course Business Midterm 1 scores Mean 39 5 SD 6 4 Highest score 49 Lowest score 22 90th percentile 46 4 75th percentile 44 3 50th percentile 40 5 25th percentile 35 5 10th percentile 30 3 2 University of Minnesota Twin Cities campus 1 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 The Primates 2 23 17 3 Topics for Today Why do we study primates How does one identify a primate What are some primate dietary adaptations How do primates locomote move around How do we classify group primates What are the different kinds of primates Continue with the living laboratory 4 University of Minnesota Twin Cities campus 2 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 Why do we Study Primates Humans are primates Primate diversity allows us to examine how natural selection shapes morphology and behavior Understanding these rules will allow us to better reconstruct the adaptive pressures important during early human evolution 5 Primate Adaptations 6 University of Minnesota Twin Cities campus 3 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 What is a Primate What do all of these animals have in common 7 The only shared derived trait in the skeleton of all primates petrosal auditory bulla Primate Petrosal Ectotympanic Dog University of Minnesota Twin Cities campus 8 4 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 Anything else Hard to diagnose primate features tend to be primitive and generalized Only primates however have a suite of these certain features More useful to discuss evolutionary trends of modern primates 9 Evolutionary Trends Among the Primates Generalized dentition Emphasis on vision over olfaction Skeleton adapted for arboreal locomotion Slow life history Behavioral emphasis on close social bonds 10 University of Minnesota Twin Cities campus 5 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 Generalized dentition All primates have the same 4 kind of teeth incisors canines premolars molars Dental formula Upper I C P M Lower I C P M 11 Emphasis on vision instead of olfaction Forward facing eyes Color vision Shortened snout Dog Primates Lemur Monkey Squirrel University of Minnesota Twin Cities campus Primate 12 6 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 Skeleton adapted for arboreal locomotion Grasping hands and feet Nails instead of claws Clavicle 13 Slow life history Long gestation period Small litter size 1 2 offspring Long lifespan Body mass Litter size Age at sexual maturity Maximum lifespan in captivity Margay Capuchin 4 kg 3 9 kg 1 2 1 12 18 months 7 years 24 54 14 University of Minnesota Twin Cities campus 7 ANTH1001 Human Evolution Lecture by Rutger Jansma Spring 2016 Behavioral emphasis on close social bonds Large brain Strong mother offspring bonds Gregarious and social animals Increased child dependency Increased parenting behavior 15 Summary of Primate Traits Primates combine 1 A


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