Scientists have been trying to make soft and friendly robots, like Disney's Baymax, for years. And they have finally done it . Octobot is the world's first soft robot . It is not like the scary , metal robots in movies like Star Wars or The Terminator ( 《终结者》 ) Instead , it is made of soft material, and looks just like an octopus (章鱼) . The Octobot is also the first soft robot that controls itself without batteries or wires, according to its researchers at Harvard University in the US. The hope is that one day , soft robots like this will help humans do difficult medical surgery and save lives in emergencies like earthquakes and storms . Scientists have been trying for years to make soft robots that are safe around humans , but this is the first time it has happened . It means that humans won't be in danger of being hurt if the robot accidentally touches you too hard. The Octobot gets power from a chemical reaction . It pushes gas through the robot's body and makes its legs dance . They used a 3-D printer to create its silicone (硅酮) body. "Humans ourselves , we're very soft and soft robots are made of materials that are safe for us to interact with , "PhD student Ryan Truby , one of the Octobot researchers, told BBC. Barry Trimmer , the editor-in-chief of Soft Robotics, said that," Soft robots and soft material technologies are definitely needed if we expect them to help us in the home or in natural environments . " They may not all look like an octopus in the future , though . Scientists have studied jellyfish and even cockroaches in their research so far.