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Evolutionary biology

Oh sibling, who art thou?

Nature volume 466, pages 930931 (19 August 2010) | Download Citation

Help from earlier offspring in rearing a subsequent brood should evolve more easily when the mother is strictly monogamous. A comparative study of birds provides evidence in support of this view.

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Author information

Affiliations

  1. Andrew Cockburn is in the Division of Evolution, Ecology and Genetics, Research School of Biology, Australian National University, Canberra ACT 0200, Australia.  andrew.cockburn@anu.edu.au

    • Andrew Cockburn

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DOI

https://doi.org/10.1038/466930a

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