Nature versus nurture—better looking birds have healthier babies

Sunday, March 24, 2013 - 18:00 in Biology & Nature

A female great tits' (Parus major) appearance is shown to signal healthy attributes in offspring in a paper in BioMed Central's open access journal Frontiers in Zoology. The black stripe across her breast and white patches on her cheeks correlate to a chick's weight at two weeks and immune strength respectively – though the former seems to signal a genetic benefit and the latter can affect an 'adopted' chick's health, suggesting nurture is involved.

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