Brain nuclei in actively courting red-sided garter snakes: a paradigm of neural trimorphism.

doi:10.1016/j.physbeh.2010.12.022

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Article

Brain nuclei in actively courting red-sided garter snakes: a paradigm of neural trimorphism.

Physiology & behavior - 28 Mar 2011

Krohmer Randolph W, DeMarchi Geno A, Baleckaitis Daniel D, Lutterschmidt Deborah I, Mason Robert T

Abstract excerpt

During the breeding season, two distinct male phenotypes are exhibited by red-sided garter snakes (Thamnophis sirtalis parietalis), with courtship behavior being directed not only toward females, but also toward a sub-population of males called she-males. She-males are morphologically identical to other males except for a circulating androgen level three times that of normal males and their ability to produce a...

Topics

Animals
Cell Count
Cell Size
Colubridae
Female
Male
Neuroglia
Neurons
Phenotype
Preoptic Area
Prosencephalon
Sex Differentiation
Sexual Behavior, Animal

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Open in PubMed

Identifiers

PMID: 21195723
DOI: 10.1016/j.physbeh.2010.12.022

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