BIBB 150 Lecture Notes - Lecture 1: Phallic Stage, Sigmund Freud, Electra Complex
14 Jun 2019
School
Department
Course
Professor
Document Summary
Offspring are genetically unique (less likely to go extinct in unstable environment) More energy generally required to find a mate (internal fertilization) Vulnerable to predators (weak babies, weak pregnancy, long maturation) Bateman"s principle - female plays a significantly larger role in their offsprings reproductive success. Males are capable of producing many sex cells, while female sex cells require time and maintenance. Sexual selection - involves female choice; males have to act and look certain ways to attract females. Ex: bird feathers, peacocks, height in humans. Female choice - the term used for the selectivity displayed by females in choosing a mate because females often expend much more energy than males do in the production and care for the young. Sperm competition - selection can act on sperm morphology, sperm number, as well as female"s ability to control fertilization success. Human uniqueness - sexual behavior is more instinctively controlled among lower species and more controlled by the brain in higher species.
