The oestrogen pathway underlies the evolution of exaggerated male cranial shapes in Anolis lizards.

  title={The oestrogen pathway underlies the evolution of exaggerated male cranial shapes in Anolis lizards.},
  author={Thomas J. Sanger and Susan M. Seav and Masayoshi Tokita and Randall Brian Langerhans and Lela M Ross and Jonathan B Losos and Arhat Abzhanov},
  journal={Proceedings. Biological sciences},
  volume={281 1784},
Sexual dimorphisms vary widely among species. This variation must arise through sex-specific evolutionary modifications to developmental processes. Anolis lizards vary extensively in their expression of cranial dimorphism. Compared with other Anolis species, members of the carolinensis clade have evolved relatively high levels of cranial dimorphism; males of this clade have exceptionally long faces relative to conspecific females. Developmentally, this facial length dimorphism arises through an… CONTINUE READING
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