Each person is a mosaic of sex-related and postpubertal biological traits that vary in their degree of femaleness and maleness.

A woman was hospitalized after she managed to fight off a brown bear that attacked her on popular hiking trail in Alaska, ...

A young bonnethead shark carries a feature that appears to fade with age: a sharply defined point at the front of its ...

A worthy ensemble of 50 young, self-made female icons whose achievements can serve as a template for women across India and a ...

A trailblazer in retail who transformed lingerie into fashion, Kar is one of India’s most successful female entrepreneurs and ...

Friends of Big Bear Valley, the group that runs the 24/7 livestream of the eagles, reported Thursday, Aug. 13, via social ...

While mating, a male redback spider somersaults so that his abdomen lands in his partner’s awaiting fangs, seemingly ...

North Carolina is home to one of the rarest salamanders in the world. Biologists are racing to save it from extinction.

The female eagle is a banded bird biologists call KD1. She was born in 2022, about 70 miles away from Big Bear Lake in the ...

Descent passed from mother to daughter rather than from father to son, a study of more than 500 Iron Age individuals from ...

Scientists may have uncovered evidence that a mammal ancestor was giving birth to live young 236 million years ago. A fossilized cynodont showed a neonatal growth line and an unusually large birth ...

Several eagles have been spotted at Jackie's Big Bear nest and now the public has to wait and see if someone takes it over.