ANT-2301 Lecture Notes - Concealed Ovulation, Ovulation, Foramen Magnum
Document Summary
Concealed ovulation: why did it evolve in humans. Exact timing of female ovulation is unknown to both the male and female of a specie. Behavior and attractiveness as the period of highest fertility just before ovulation. In humans is highly debated: estrus in primates. Readiness to copulate when solicited by a male. Pawlowski: no difference in receptivity b/tween humans and primates, younger males w/ higher levels on testosterone constantly solicit females, similar to humans in that there is more of a constant receptivity. Female actively engaging in solicitations by females to copulate: behavior more limited in primates to times during estrus, proceptive actions peak during periovulatory period of max. Exciting to males: during estrus males find females sex. > initiating copulations: most female primate menstrual cycle is characterized by sex. Disinterest from males: until estrus, evolution of concealed ovulation. Most show dramatic increase in mating during estrus period. Genital swelling are visual in nature and attract males.
