The Costs Of Cooperation And Conflict In Group Living
<p>Raising children is a cooperative effort in humans — and in ostrich, <em>Struthio camelus</em>. Ostriches form groups that lay their eggs in a large communal nest and individual members of the group take turns incubating them. It seems very idyllic and cooperative until you realize that, like everything, cooperative breeding has its costs. For example, competition can be fierce over mating opportunities and whose eggs are incubated. The counteracting forces of cooperation and competition are predicted to select for an optimal group size, so knowing this, you might think that ostrich have precisely worked out the most beneficial group size and the best male-female balance within them. If so, and if real-life scenarios are anything to go by, you’d be wrong.</p>
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