ANP 325 Evolution of Cooperation

ANP 325 Evolution of Cooperation - Evolution of Cooperation...

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Variation Heredity Differential Reproductive Success What are the necessary components for natural selection to occur? Any trait that allows an individual to survive and reproduce better than its competitors Neutral trait- no benefit or detriment Sickle- Cell selection for the heterozygote Genetic Drift - chance selection Mutation is the original creator of all variation Adaption Most mammals have dichromatic vision Two cone types Gene duplication Ability to distinguish fruits and leaves? Toxins in plants African and Asian primates all rely on leaf eating, the highest quality leaves Catarrhine primates have routine trichromatic vision Howler monkeys have routine trichromacy which are folivores Trichromacy in Primates Nocturnal scavenging, poorer night vision How is trichromacy a disadvantage? Benefit of breaking camoflauge Advantage to Dichromacy?
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ANP 325 Evolution of Cooperation - Evolution of Cooperation...

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