Solitary obsession or ménage à trois, but cooperative breeding is never a two-party game.
Cockburn
Andrew
A
Evolutionary Ecology Group, School of Botany and Zoology, Australian National University, Canberra ACT 0200, Australia. Andrew.Cockburn@anu.edu.au
D000533:Altruism; D000818:Animals; D001522:Behavior, Animal; D003299:Cooperative Behavior; D005260:Female; D006379:Helping Behavior; D006608:Hierarchy, Social; D008297:Male; D012098:Reproduction; D012726:Sexual Behavior, Animal