robots are smart. With their computer brains, they can do work that humans prefer not to do because it is dangerous, dirty or boring. some robots are taking job away from people. Bobby is a mall carrier robot that bring mail to a large office building in Washington, D.C there are hundreds of mail carrier robots in the United States. In more then seventy hospitals around the world, robots called Help Mates take medicine down halls, call for elevators, and deliver meals. In Washington D.C, a tour guide at the Smithsonian museum is a robot called Minerva. About 20 percent of the people who met Minerva said that she seemed as intelligent as a person. There is even a robot that is teacher.