Robots are smart 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 is a mail carrier robot that brings mail to a large office building in D.C. There are down hundreds of mail carrier robots i the United States. In more than seventy the world, robots called Help Mates take D.C., a tour halls, call for elevators, and deliver meals. In Washington, About 20 guide at the museum is a robot called Minerva. intelligent percent of the people who met Minerva said that she seemed as as a person. There is even a robot that is a teacher.