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 jobs away from people. Bobby isa mail carrier robotthat brings mail to a large office building in Washington, Dc. There are hundreds of mail carrier robots in the United State. In more than 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 Minervo said that she seemed as intelligent as a person. There is even a robots that is a teacher.