The Journal of Herpetology publishes original research articles on the biology of amphibians and reptiles, with emphasis on behavior, conservation, ecology, evolution, morphology, physiology, and ...

People with male reproductive anatomy usually have two testicles (testes), commonly called balls. The function of testicles is to produce sperm and testosterone, which is a male sex hormone. These egg ...

An Alabama Senate committee advanced a bill to define an individual’s sex based on reproductive anatomy. Senate Bill 92 “would define man, woman, boy, girl, father, mother, male, female, and sex for ...