ANT211H5 Lecture Notes - Lecture 7: Cuckold, Parental Investment, Inclusive Fitness
Document Summary
Ant211: human psychology and the pursuit of fitness. There must be differences between available males. Males limit their mating effort for parental effort. Her own physiology is responsible for offspring therefore, she is the most selective sex: greater parental investment, maximum reproductive potential < males, greater selectivity in mates. Little parental investment: increased mating opportunities. Increased parental investment: the greater access males have to reproductive females, the greater the investment, greater concern over female fidelity and prevention of cuckoldry (males do not want to raise offspring that are not their genetic relative) Assuring their paternity of those women"s children. While remaining alert to extramural low-cost sexual opportunity. Maternal stressors during 2nd trimester of pregnancy. Difference in brain anatomy between hetero & homo males. Adoption of nonbiological children (is it a nepotistic strategy?) Recourse for infertile & post reproductive couple. Reproductive variance is shrinking: fertility is declining, but pronatalism has endured.
