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, ...

New University of Hawaiʻi research confirms that “Sharktober” is real, revealing a statistically significant spike in shark ...

Believe it or not, but ducks have a reputation for the unexpected: bizarre and intricate mating anatomy. According to ...