PSYCH 2810 Lecture Notes - Lecture 13: Pair Bond, Orangutan, Parental Investment
Document Summary
Summary: we can better understand mating behaviors in animals if we track parental investment in offspring. For humans, investments are too variable to produce generalizations about human mating behavior. Bonobos and chimpanzee- no difference in body sizes between males and females which results in promiscuous: promiscuous dating: fertile females will accept several males, offspring in same litters can be from several fathers. Orangutan and gorillas- males are much larger than females and guard her. Each male will have multiple females (polygamous), if a male can get to another"s females they will kill a baby so the females will come with them. Monogamous bonding- pair bond with a single member of opposite sex, most common in birds but not mammals. Males and females have similar body size but either can be larger than the other. Estrus- it is biggest and reddest during the most fertile part of the of their cycle.
