Penguin chicks benefit from elevated yolk androgen levels under sibling competition.
Crested penguins (genus Eudyptes) have a peculiar hatching pattern, with the first-laid egg (A-egg) hatching after the second-laid egg (B-egg) and chicks from A-eggs typically having a much lower survival probability. Maternal yolk androgens have been suggested to contribute to the competitive super...
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Main Authors: | Maud Poisbleau, Wendt Müller, David Carslake, Laurent Demongin, Ton G G Groothuis, Jeff Van Camp, Marcel Eens |
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Format: | article |
Language: | EN |
Published: |
Public Library of Science (PLoS)
2012
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Online Access: | https://doaj.org/article/9a52b32b17d24032abd675e8ce90b46c |
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