PSYC14H3 Lecture 2: lecture 2
Document Summary
Intersexual selection = involves both sexes; if members of one sex have a consensus about the desirable characteristics of the opposite sex, then those individuals with the desired characteristics will have a mating advantage. Intrasexual selection = consists of contests between members of one sex, where the winner of the contest gains preferential access to members of the opposite sex. Selfish gene (dawkins, 1976) and sociobiology (wilson, 1975) Dawkins (selfish gene) = proposed that animals exist solely for the preservation and propagation of the gene. Wilson (sociobiology) = the systematic study of the biological basis of all forms of behaviour, including sexual and parental behaviour, in all kinds of organisms including humans. Biological evolution: natural selection (survival of the fittest, sexual selection (fecundity of the sexiest) Cultural evolution: communicable ideas spread, emotional ideas spread, minimally counterintuitive ideas spread = i. e. religions, supernatural ideas are odd in terms of rational outlooks of the world (smallest units of cultural memes.
