“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...

The new evolutionary study found two main reasons for the primate anomaly: to attract mates and to threaten rivals.

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study by Upama Aich at the University of Western Australia and colleagues, ...

The male genital system consists of both external and internal parts. The external male genitalia include the penis, urethra, and scrotum. The internal male genitalia include the seminal vesicle, ...

Male body types are often divided into mesomorph, ectomorph, and endomorph. These types are determined by factors like limb proportions, body weight, height, and body fat distribution. Male bodies ...