Description:
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It would be astonishing if the process of selection did not significantly shape our psychology for interacting with family members. A person may share 50% of their genes with one family member and only 12.5% of their genes with another. In terms of inclusive fitness, these differences would have had great implications for the evolution of cognitive and behavioral adaptations for interacting with different family members to whom an individual was related to different degrees. Our research will use inclusive fitness theory as a basis to examine patterns of cooperation and conflict between family members and the factors that impact them.
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