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Interactive video lesson plan for: 13. Sexual Selection

Activity overview:

Principles of Evolution, Ecology and Behavior (EEB 122)

Sexual selection is a component of natural selection in which mating success is traded for survival. Natural selection is not necessarily survival of the fittest, but reproduction of the fittest. Sexual dimorphism is a product of sexual selection. In intersexual selection, a sex chooses a mate. In intrasexual selection, individuals of one sex compete among themselves for access to mates. Often honest, costly signals are used to help the sex that chooses make decisions.

00:00 - Chapter 1. Introduction
06:53 - Chapter 2. Competing and Choosing
13:11 - Chapter 3. Competition with Sexual Dimorphism
27:29 - Chapter 4. Honest, Costly Signaling
35:55 - Chapter 5. Selection through Perception and Polyandry
43:35 - Chapter 6. Summary

Complete course materials are available at the Open Yale Courses website: http://open.yale.edu/courses

This course was recorded in Spring 2009.

Tagged under: Sex,sexual selection,anisogamy,sexual dimorphism,signaling,reproduction,competition,choice,immune system,attraction,beauty,polygamy,polyandry,natural selection,lek

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