ANTHRO 2B Lecture Notes - Lecture 6: Quadrupedalism, Slow Loris, Brachiation
Document Summary
Small animals lose body heat faster than large animals. Implications for metabolism: small animals: faster metabolism to generate more body heat. Implications for diet: quantity of diet: small animals must fuel faster metabolism. Low: leaves: rule of thumb: primates(small) <500 g emphasize insects and sap. Imi is about 100: arboreal quadrupedalism: (ex: squirrel monkey, terrestrial quadrupedalism: bigger (ex: baboon, semi brachiation: combination of both and still kind of big body (ex: spider monkey, suspensory (hang beneath branches, brachiation: long arms, imi>100, ex: gibbon. Brachiate through trees: cumbersome: use of all hands and all feet (ex: orangutan, slow loris, bipedalism: (use two legs) long legs, imi <100, ex: humans (imi between 80-90) Males and females are about the same size. They are less sexually dimorphic then we humans are: polyandry (rare): one female of a number of full adult males. Single male or uni-male groups: one adult male and many females: mutli male groups: many adult males and adult females.
