ARCH 131 Lecture Notes - Lecture 4: Encephalization, Color Vision, Stereopsis

• School: Simon Fraser University
• Department: Archaeology
• Course: ARCH 131
• Professor: Dennis Sandgathe

Document Summary

Why do physical anthropoligists study primates: primates are our closest evolutionary. Primates fall in the phylum chordata ( has spinal cord) , in the class mamalia ( covered with hair,) Eutheria ( mammals that have placenta once they give birth) eutheria : one of the orders is primata (200-300 species) : relaitively small group. Arborial ( inhabit forests and snowy environments in japan) Terrestriol ( some inhabit forests and some dry lands) Vertical clinging and leaping ( generally small primates, ex. Tarzan, monkeys, curved spines so dont have to put effort into leaping. Bipedalism ( least common, only chimpanzees, humans and one more) 3 types of bipedadalism: occasional ( monkeys and apes, habitual or facultative ( bonobos, obligate ( only humans, only form of locomotion) Generalized dentition ( to eat a wide range of this, omivores. Reduced olfactrory systems ( reduced sense of smell) Aye- aye ( nocturnal primate, night monkey from madagascar)