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Evolution alone cannot protect animals from climate extremes like heatwaves and deep cold. Animals are adapting their behavior to help survive global warming.
A heat dome brought record temperatures to Mexico, Central America and parts of Florida and Texas in May. Mexico has been hit especially hard.
A new ancient mammal species, that lived 65 million years ago, is thought to be the earliest known ancestor of hoofed animals like deer, pigs, and horses.
Titanosaurs thrived globally after the extinction of their more famous relatives. They had over 100 species ranging from massive to relatively small.
Whales are not just the biggest animals on the planet, they have smashed other records, too. And they way they communicate and eat ... Wow!
A closer look at the Rosette Nebula reveals a whole zoo of animals, including an elephant, llama, woodpecker, donkey and more. Can you see them?
How captive animals are coping with the sudden emptiness of the world's zoos and aquariums.
Geologists say the worm-like creature - about the size of a grain of rice - is the 1st ancestor on the family tree that contains most animals today, including humans.
Ever heard of a humphead parrotfish, or seen a worm-eating giant snail?! Here are 5 animals you might have never heard of, in a new video from the BBC.
How do solar and lunar eclipses influence animal behavior? While the human world gathers to see tonight's lunar eclipse, what's the rest of nature doing?
“The animal world tells us again and again and again that love is really important.”
Your dog or cat might look as if it's dreaming when its whiskers twitch and legs wiggle. But are animals really dreaming?
Trick or treat! Here are 3 animals that excel at playing tricks on others - and not just on Halloween!
The new discovery of a jaw bone suggests that this prehistoric aquatic reptile would have been about the size of a blue whale.
The roar of motors, ping of military sonar, bangs and blasts from offshore development are distracting, confusing, and even killing, aquatic animals.
A new study suggests that humans, not climate change, were the primary cause of extinction of the huge and astonishing creatures that roamed Australia 45,000 years ago.
Scientists were astonished to discover tiny bits of plastic inside the bodies of animals in the deep ocean.
These five animals are as transparent as ghosts ... but they're real!
Icy glaciers and perennial snow patches provide a home or resting place for 19 species of birds and 16 species of mammals - 17, if humans are included.
Bone structure indicates that it was a juvenile, estimated to be 60 feet (18 meters) long. An adult would have been much larger.