ANT211H5 Lecture 6: Human Reproductive Investment
Document Summary
Research ties it back to our relationship with chimpanzees. Suggestion that our earliest ancestors probably had a mating system similar to chimpanzees. Evidence rest on the similarities we still have with chimpanzees: a lot of the domains hierarchy is extended through these males. These long-term bonds are forms through women: when these females are acquired, then long-term pair bond has formed, often as well, there is some kind of sexual exclusivity between bonded pair. Males: disproportionately large penis, rapid exhaustion of sperm during ejaculation. It is often thought to aid in the bonding and the sexual stmulation of sexual partners: males of humas tend to reach orgasm or ejaculation after a longer phase of copulation. Human sexual intercourse: marked arousal from visual stimuli through different stimuli, extended foreplay, longer time to male orgasm than other mammals. Human hypersexuality : both sexes have a heightened sexual drive, of modern humans, sex has become independent of reproduction.
