secondary sex characteristics
The Benefits of Being a “Bearded Lady”
Bob Grant | Jan 8, 2015
A study of female eastern fence lizards that bear a distinctly male trait yields tantalizing clues about the tradeoffs involved in blurring the lines of sexual dimorphism.
The Ultimate Wingman
Tracy Vence | Nov 1, 2013
Differential gene expression between dominant and subordinate male turkeys could help evolutionary biologists deconstruct the roots of sexual dimorphism.
Lampreys Heat Up Before Mating
Kate Yandell | Jun 28, 2013
Fatty tissues on backs of male fish get warmer in the presence of potential partners.