Chapter 8

Chapter 8 - How Humans Evolved Chapter Eight: The Evolution...

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How Humans Evolved Chapter Eight: The Evolution of Social Behavior  I. Altruism and Cooperation: a Selective Puzzle  a. Most of the anthropoid primates live in social groups that create many and  diverse opportunities for interaction b. Dyadic (two-individual) interactions have a number of possible outcomes  in which the actor and recipient can receive positive or negative outcomes c. Altruism can result in severe injury without the promise of any tangible  reward II. Kin Selection  a. W. D. Hamilton addressed the question of altruism in quantitative terms b. These findings introduced a new term: inclusive fitness c. Findings describe the logic of genetics as maintained over evolutionary  time  d. Hamilton took into account the assumptions of Mendelian genetics about  the degree of relatedness among kin when addressing altruistic social 
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Chapter 8 - How Humans Evolved Chapter Eight: The Evolution...

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