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Kin selection

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Kin selection is an evolutionary mechanism whereby phenotypes that increase inclusive fitness are selected for. Kin selection involves one organism acting in ways that help other organisms that carry its genes to survive and reproduce. Frequently kin selection involves parents looking young organisms. Kin selection can also involve helping other relatives. Animals frequently use up energy to increase the likely reproductive success of siblings, uncles, aunts, nephews, nieces, even cousins and other relatives. Animals even put their own lives at risk to help relatives.


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