BIO 1700 Lecture Notes - Lecture 4: Baculum, Occipital Lobe, Euarchontoglires
21 Jan 2017
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Document Summary
Form of evolution where individuals with certain characteristics will have a better chance than others at finding a partner. Intrasexual (within the same sex) and intersexual: sexual dimorphism. Women want to make the best offspring, ie peacock with the most and nicest feathers. Intersexual selection (choice of a partner in favor of certain traits that represent genetic quality) Euplect: length of feathers may be favored by females, the males with a double tail were chosen, females recognize the males that have these traits as being more likely to be give good genetics. I. e. birds that dance to attract their mates. Intrasexual (within the same sex) selection: not always the strongest that will win, but the one that has the best traits for the female, animals know who has the certain traits that are more dominant. Intrasexual selection often involves a ritual competition between males.
