PSYCH 1XX3 Chapter Notes - Chapter 2: Inclusive Fitness, Eusociality, Kin Recognition
5 Apr 2018
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Since fertilization is internal in humans, a woman may mate with a man other than her long-term partner, so men cannot be certain of their paternity (until recent technology advances) Section 4: kinship and human affairs: social behavior: The actions that affect not just the individuals performing them, but other people as well. In darwinian terms: if an individual performs a behavior that improves its own fitness, then the genes promoting it would be selected for and it would become widespread. But: organisms have also evolved to help others in some species (helping behavior?) Ex: found in eusocial insects (such as ants) they have a radical reproductive division of labor. If selection is to favour helping behavior, the cost to the actor must be less than the benefit to the recipient (c
