Anthrobio lectures - Anthrobio lecture 1 4 to 5 myaage of earth 19:39:00 maintaining constant internal temperature homoeothermic dinosaurs cannot

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Anthrobio lecture 1 08/02/2009 19:39:00 4 to 5 mya-age of earth maintaining constant internal temperature:  homoeothermic  dinosaurs cannot maintain it, no thermoregulation  energy received by extracting nutrients from the food we eat; homoeothermic  always creating heat Dominance of mammals:  Advanced CNS Reproductive efficiency Generalized heterodontic dentition: omnivores Thermoregulation  Most mammals give live birth, not all (platypus lay eggs) Monotremes (egg laying) Marsupials (pouch—reproduce sexually but don’t deliver same state as  regular mammals; born right after end of embryonic period); survive in  Australia because:  o Isolation/ lack of predators  o Nutrition rich milk o Produce more than one egg, ready to deliver if one dies; sequential  reproduction Placental: live reproduction after both embryonic and fetal Diversity/continental Drift: 225 mya Pangea (all lands) southern: Gondwanaland northern: Laurasia Primates: Anthropoids and Prosimians; primates have nails, not claws Prosimians: Tarsiers, lemurs (not as advanced) Anthropoids: Monkeys--NWM, OWM, Hominoids, Humans Most mammals don’t have 3 dimensional vision
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
08/02/2009 19:39:00 Primate brain:
Background image of page 2
Areas concerned with vision located in occipital loves are expanded We evolved in the trees (arboreal)  Life in trees is exposed to obstacles, we must adjust; complex brain Arboreal Adaptation : enhancement of visual system,  discern different foods  within the trees, larger brain, high degree of visual acuity as result of low light  and abundance of predators; ability to judge distance: primates evolved in  trees; this would necessitate visual adaptations, depth perception to judge the  distance between trees and color vision in order to judge nutritional quality of 
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/18/2011 for the course ANTHRBIO 364 taught by Professor Frisancho during the Spring '10 term at University of Michigan.

Page1 / 10

Anthrobio lectures - Anthrobio lecture 1 4 to 5 myaage of earth 19:39:00 maintaining constant internal temperature homoeothermic dinosaurs cannot

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online