Social selection is a powerful explanation for prosociality.

Bibliographic Collection: 
CARTA-Inspired Publication
Publication Type: Journal Article
Authors: Nesse, Randolph M
Year of Publication: 2016
Journal: Behav Brain Sci
Volume: 39
Date Published: 01/2016
Publication Language: eng
ISSN: 1469-1825
Keywords: Biological Evolution, Humans, Interpersonal Relations, Phenotype, Reproduction, Selection, Genetic, Social Behavior

Cultural group selection helps explain human cooperation, but social selection offers a complementary, more powerful explanation. Just as sexual selection shapes extreme traits that increase matings, social selection shapes extreme traits that make individuals preferred social partners. Self-interested partner choices create strong and possibly runaway selection for prosocial traits, without requiring group selection, kin selection, or reciprocity.

DOI: 10.1017/S0140525X15000308
Alternate Journal: Behav Brain Sci