Whether on four paws, with fins, or wings–the animal kingdom moves at a rapid pace. Some animals seem to simply ignore the speed limit. But what is actually the fastest animal in the world? A ...

Speed in the animal kingdom comes in many forms, from powerful land sprints to lightning-fast dives beneath the waves. Whether it's in the air, on land, or through water, each species has evolved in ...

Many mammals deliver in minutes after long pregnancies. See which species have the quickest births to help newborns thrive.