Grizzly bears stand at around 3 to 5 feet tall, and when standing on their back legs, some measure up to 8 feet tall. Their ...

Only about 50 Apennine brown bears remain in the wild, and new research sheds light on a key challenge to their survival. The ...

Some were the size of a dog. Others were as large as polar bears. A newly-discovered fossil of the ferocious hyaenodont is ...