PHL357H5 Lecture Notes - Lecture 8: Sexual Selection
Document Summary
Evolution of behavior: species uniform patterns call out for a functional explanation especially when mobbing (widespread, constant and apparently dangerous) If you talk about sexes you have to talk about what"s good overall. There is a competition between and across sexes. Males and females have different costs and constraints. Sexual selection is due to maximizing number of offspring: peacock"s tail. Premise: males and females have different sexual behavior: mate selection, frequency of copulation and nurturing. Hypothesis: its cause of differing costs and constraints. Prejudice: females are always the caretakers and males are always the wooers. Males gain by mating and females do not. He found it through drosophila flies and how males have more successful kids.
