Article
Endocrine correlates of alternative phenotypes in the white-throated sparrow (Zonotrichia albicollis).
Hormones and behavior - 1 Dec 2006
Spinney L H, Bentley G E, Hau M
Abstract excerpt
Many vertebrate species exhibit alternative phenotypes (or morphs), in which one sex displays phenotypic variation equal to or greater than the variation between the sexes. Males in such species typically display differences in reproductive strategies and morphology. Steroid hormones such as test...
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