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Unformatted text preview: o W: Why did natural selection favor this behavior and not another? A: Breeding is most successful in spring and early summer o By chasing away other males, decreases chance that eggs laid in his nesting territory will be fertilized by another male Fixed action pattern (FAP) o Sequence of innate behavior that are fixed o Once initiated, usually carried to completion o Triggered by an external sensory stimulus Ex. territorial behavior in male, stickleback fish, feeding behavior by gulls...
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- Spring '07