Pennsylvania isn't exactly the Serengeti plain. There may be coywolves prowling around the fringes of Philly's Roxborough neighborhood, but one wild animal you wouldn't expect to find here is a ...

Robots are likely not the first thing you think of when you hear the word "speed," but one group of researchers is trying to quell the stereotype of a lumbering robot with a machine built to move more ...

If you were to ask strangers on the street, 'What's one sign of a happy cat?' almost everyone would think of purring. While it's true that purring is a sound of contentment among felines big and small ...