CAS WS 101 Lecture Notes - Lecture 6: Mate Choice, Heritability, Fallacy

• School: Boston University
• Department: Women's, Gender, & Sexuality Studies
• Course: CAS WS 101
• Professor: Karen Warkentin

Document Summary

Evolution by natural selection is an inevitable result of the combination of: variation, heritability, differential reproduction. Essentially means: some parents have more surviving offspring than others; offspring inherit parents" genes, which are more abundant in the next generation. Intrasexual: compete with members of same sex to members of the opposite sex. Intersexual: members choose mates of the opposite sex to mate with. The existence of competition among males is uncontroversial and long recognized. Their traits that favor this are weapons, speed and stamina. Recognition of mate choice takes longer by females. Sex roles (in bio) how much does each sex perform: competition for mates, choice of mates, parental care (sometimes) Sex-role reversal females compete and males care for young. ex: seahorses. Theres a lot of diversity in the animal kingdom yet we still think in terms of conventional and reversed sex roles that imply competitive males and caring females are to be expected normal .