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News Release 06-130

Bird Moms Manipulate Birth Order to Protect Sons

Hormonal changes affect egg laying and development

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A mated pair of house finches (Carpodacus mexicanus) and the mites that infest their nests

A mated pair of house finches (Carpodacus mexicanus) and the mites that infest their nests.

Credit: Copyright 2005 Alex Badyaev


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