Kin selection facts for kids
Kin selection is the evolutionary strategy that favours the reproductive success of an organism's relatives, even at a cost to the organism's own survival and reproduction. Charles Darwin discussed the concept of kin selection in his 1859 book, On the Origin of Species.
Kin recognition allows individuals to be able to identify their relatives. In humans, self-sacrifice is both more likely and on a larger scale with kin than with unrelated individuals; for example, humans give presents according to how closely related they are to the recipient.
In other species, vervet monkeys use allomothering, where related females such as older sisters or grandmothers often care for young, according to their relatedness. Kin selection causes changes in gene frequency across generations, driven by interactions between related individuals.
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Families are important in human behaviour, but kin selection may be based on closeness
Kin selection Facts for Kids. Kiddle Encyclopedia.