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

For the first time, we know more than we ever expected to know about the sex lives of the majestic beluga whale. It's ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

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 study reinforces the idea that sexual selection has been key in forming unique human traits—and that old adages might be ...

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

Four female shearers have established a new world record, shearing 1938 lambs in eight hours in a South Otago woolshed. Rose Lewis, Ariana 'Missy' Te Whata, Te Atakura Crawford and Pagan Rimene set ...

There are so many male names in the United States that only have one syllable, yet they're no less popular or meaningful than ...

A female gray wolf died in northwest Colorado on Friday, Jan. 16, marking the 12th death since Colorado Parks and Wildlife ...

Nature is full of surprises, but few are as fascinating as hybrid animals, creatures born from crossing two different species ...

An explosive focus group revealed Friday that President Donald Trump's troubles with Latino voters go far beyond wallet ...

On Thursday, Jan. 15, the Colorado Parks and Wildlife Commission will vote on the final wolverine restoration plan alongside ...