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Science 24 October 2003:
Vol. 302. no. 5645, p. 529
DOI: 10.1126/science.302.5645.529g
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This Week in Science

Explaining cooperative breeding in mammals and birds remains one of the greatest problems for evolutionary biology. Recently, there has been controversy over the extent to which cooperative breeding can be explained by kin selection, when individuals gain fitness through the reproduction of relatives. In a meta-analysis of data on cooperatively breeding species, Griffin and West (p. 634) found that preferential helping of relatives is more common in species where benefits of helping are greater, thus providing support for the kin selection theory.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)