Ducks evolved reverse spirals and sperm storage that give females surprising control, challenging long-held assumptions about ...

Find out what a male, female and juvenile northern bobwhite looks like, what they sound like, and where you may find these ...

The Supreme Court on Tuesday will hear a case that could affect laws in 27 states that bar transgender athletes from joining ...

In 2025, female domination, well, dominated — both in culture and, as it turns out, in many of our sex lives. We unpack why male submission is so hot right now (for all genders!) In 2025, something ...

Just before sunset, as baseball-sized tarantulas cross the road at Colorado’s Southern Plains Land Trust, two biologists quietly exit their car to scoop up a few of these eight-legged pedestrians.

RALEIGH, N.C. (WTVD) -- Starting January 1, North Carolina will officially recognize only two sexes: male and female. This change stems from House Bill 805, a comprehensive measure passed by the State ...

In truth, it is not a paradox. The animals involved all seem perfectly eager participants in heterosexual behaviour, as well, so their reproduction is not compromised. It is, though, a puzzle—for ...