ANT 2000 Lecture Notes - Lecture 12: Gibbon, Ponginae, Homininae
11 Sep 2019
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What are the two families within apes: hylobatidae (gibbons, siamangs, hominidae (great apes and all hominins) Long arms and hands, very flexible shoulder joints. Allows them to move easily through the canopy. Inter birth interval (# of years between births) Long considered strictly monogamous, more recent research revealed extra-pair copulations. Male singing one song and a female joining along with another) What are the largest arboreal mammal who is highly sexually dimorphic. What are the sex differences in niches in orangutans. Leaves, sap, bird eggs, honey, hunting small animals, fungus, insects. Female orangutans are usually friendly when they meet, but males not so much. What are the two types of male orangutans: developed. Cheek pads, larger size, higher t levels: underdeveloped. Males may vary genetically in their developmental timetables. Females seek out developed males to mate with. Undev. mates can mate, but by force.
