ANT101H5 Lecture Notes - Lecture 6: Monogamy, Homininae, Old World Monkey
Document Summary
Ant101 lecture 6 primates cont"d: catarrhini (old world monkeys, apes, humans) Have tails, but are used for balance and communication. They tend to walk on 4 legs. New world monkeys swing through trees with tail. Tail: balance & communication: hominoidea (apes & human) Apes have no tails, use their back legs more than front arms. Can hang on trees by arms, have the rotating cusp in shoulders. Serial monogamy: having 1 sexual partner at a time. These apes have exclusive single partners, even through fertility: hominidae (greater apes and humans) Primary motion is fist walking: only seen in orangutans. Dispersed mating system females are willing to travel for mating. Food source is also dispersed, males separate from offspring: gorillinae (gorillas) Large sexual dimorphism, 1 dominate male gorilla and has many sexual partners (silver back males) Visible signs of ovulation in females, through buttocks swelling. Shy, gentle vegetarians: homininae (chimpanzees, bonobos & humans)
