There are people who can see, hear, walk, or pick up their children because of artificial eyes, ears, legs. and arms. These are all possible because of developments in the field of bionics. Bionics means the study of how living things are made and how they work. Engineers study bionics to desigh machines that are similar to living things. For example. in order to design airplanes. engineers have studied birds. field of bionics also includes building machines to replace The or to support processes within the body