The four-legged robots even kick around a soccer ball together. Massachusetts Institute of Technology's (MIT) simultaneously cute and unsettling "back-flipping" robot dogs enjoyed some time outside ...

“Robots should work for humans, so they need to be able to interact with our environment and perceive our world the way we do,” said Ding Zhao, assistant professor of mechanical engineering at MIT.

At Carnegie Mellon University in Pittsburgh, researchers are hard at work developing robot "dogs" designed to assist in ...