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

The world’s fastest animals will undoubtedly include the speedy cheetah – but there are many other fast creatures on the ...

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Scientists refine the timeline of sponge origins, showing soft-bodied ancestors likely evolved later than some chemical evidence suggested.

Mosquitoes are biting humans more often as biodiversity loss leaves them with fewer animals to feed on, according to new ...

Earth’s first sponges may have been ghostly, soft-bodied pioneers—ancient animals that evolved long before their skeletons ...

There is a group of animals with more species than any other group, but Earth has such an astonishing variety of life that ...

Five new animal species that camouflage themselves as excrement or bark reveal some of what still remains hidden in the world ...

Aggression in the animal kingdom can take many forms, including biting, charging, and stinging. Some animals lash out to ...

When people think of intelligent animals, they immediately think of dolphins, elephants, and chimpanzees. But one of the most ...

Do animals play a larger role in shaping the Earth’s surface than geological processes like flooding, wind, fire, and landslides? This is what a recent study published in Proceedings of the National ...