Recently, scientists have built soft robots named Gelbots.
Gelbots are made out of gelatin. They are created by 3D printing.
They are capable of moving without requiring an extra power source because of the way their shape, dimensions and patterning of gel are designed. This is because the gels swell or shrink in response to temperature.
Gelbots represent a significant advance in the world of soft robotics, or robots that are fashioned out of organic and non-metallic materials.
