This experimental study used life-sized and screen-based 3D male avatars to test how penis size, height, and body shape ...

According to the results, “Females rated male figures that were taller, had a higher shoulder-to-hip ratio (indicating a more ...

Men assess potential rivals that have a larger penis as more of a threat, both physically and sexually, according to a study ...

Larger penis size influences female attraction and male rival threat perception, highlighting how sexual and competitive pressures together shaped human sexual evolution.