Robin Dunbar 
Reproductive Decisions [PDF ebook] 
An Economic Analysis of Gelada Baboon Social Strategies

Robin Dunbar uses economic models to explore the social behavior of the gelada baboon (Theropithecus gelada), a unique species, whose social system is one of the most complex among the primates. His work illustrates the value of an approach that views social behavior as being ultimately concerned with reproduction and with the maximizing of an individual’s contribution to its species’ gene pool.
Originally published in 1985.
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