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What Are The Four Biological Theories

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Biological Theories In psychology, biological theories of prosocial behavior explain why we help others through an evolutionary perspective placing greater emphasis on natural selection. The kin-selection theory is a well known biological theory. According to the kin-selection theory, individuals are more likely to sacrifice themselves for relatives than non-relatives. The kin-selection theory states that individuals choose to help blood relatives rather than non-relatives because by doing so, we maximize our fitness and therefore are more likely to pass our genes on. (Hamilton, 1963 as cited in Hannibal, 2012, p. 103) A study by Simmons et al. in 1997 investigated whether close relatives would be more willing to donate a kidney than non-relatives.

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