Paleontologists formally named at least five new dinosaur species this month, spanning a four-winged glider that likely ...

A small feathered dinosaur that lived in what is now northwestern China likely launched itself from elevated perches and ...

Like handedness in humans, dogs show pawedness. But what is the best way to determine whether a dog is left-pawed or ...

UC Davis researchers found that red-tailed hawks adjust their wing and tail movements during molt to maintain flight ...

When biologists study cooperation in animals, they usually offer just a single task at a time. But what happens when animals ...

A study of chimps, gorillas and other great apes, including human children, sheds light on how laughter has evolved.

Laughter communicates a playful, happy feeling without using words. Many animals can laugh too, but the giggles don’t follow ...

Deep within tropical forests, sloths move at a pace that seems almost frozen in time. Their slow movements, low energy use, ...

Locomotion is one of the most fundamental relevant motor behaviours in humans. Walking in daily life is rarely the steady, ...

For animals such as fish and insects that can’t control their body temperature, heat waves could be particularly detrimental.

A new study, published in the Journal of Raptor Research, reveals that Africa's smallest diurnal bird of prey, the pygmy ...

Of all the creatures that have ever sent a person screaming out of a kitchen, the cockroach has probably earned the most ...