EVANTH 101D Lecture Notes - Lecture 8: Foregut Fermentation, Cheek Pouch, Basal Metabolic Rate
Document Summary
Suborder haplorhini split into three superfamilies: tarsiers (lecture 7, platyrrhine - new world monkeys. Central and south america; all arboreal; diurnal, except 1 species (owl. Monkey (aotus)); body size ranges from 100g to 10 kg. Atelines (wooly, spider, howlers, muriquis) have prehensile tails. Evolved claw-like nails to cling onto trees and scurry up and down. Body size ranges from 4 kg to 20 kg. Sub family: cercopithecinae ( cheek pouch monkeys) (c. 1. b. 1) can store fruit in cheek pouch (c. 1. b. 2) bilophodont molars have two ridges on teeth (c. 1. b. 3) Ischial callosities - hairless sitting pads on butt. Sub family: colobinae (leaf eating monkeys) (c. 1. c. 1) multi-chambered stomach - enlarged gut, cecum, and colon; Apes (c. 2. a. 1) africa and asia; diurnal; body size ranges from 5kg to 175kg (c. 2. a. 2) tailless. Fats and oils: insects and animal prey, seeds: avoid toxins in mature leaves and some fermented fruits, four factors determine how much food is required: