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

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

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

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

While the majority of animals (humans included) roam the Earth, some of nature’s most fascinating creatures spend their lives ...

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

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

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

When thinking about the world’s most enormous horses, most would envision a team of majestic Clydesdales pulling a wagon. Indeed, the heaviest horses are used as working and draft horses and have been ...

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

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 ...