Horses can detect fear in humans by smell, becoming more likely to startle and more wary of people who are scared, a new study has found.

Images of plants painted on pottery made up to 8,000 years ago may be the earliest example of humans’ mathematical thought, a study has found.

Tyrannosaurus rex lived longer and took more time to reach its maximum size than previously thought, according to a new study.

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K.