Human genitalia evolved through development which has been chronicled by a team of researchers from Harvard University. Male snakes and lizards each possess a pair of penises, which evolved from ...

The prostate gland is an organ in reproductive anatomy. It sits directly below the bladder and plays a role in producing semen. Some urinary problems may result from changes in the prostate gland. Sex ...

This paper presents the first description of the anatomy and histology of the male reproductive system for this doryline ant. Anatomical descriptions of the eighth and ninth sterna are included. The ...