There are both two-toed and three-toed sloths. All sloths are built for life in the treetops. They spend nearly all of their time aloft, hanging from branches with a powerful grip aided by their ...

Twenty-three were reincarcerated. Only three made it all the way to freedom—a Dutchman and two Norwegians, all flyers with the British Royal Air Force. Here's their remarkable story, which ...