I want the frog robot!
Using a multimaterial 3-D printer, a group of scientists led by Robert Wood at Harvard University created a froglike robot from both rigid and soft materials. [Nicholas W. Bartlett et al, A 3-D-printed, functionally graded soft robot powered by combustion]
It could make friends with the dog robot bob's getting me.
By min | July 10, 2015, 9:19 AM | Science
If they could construct one powered by pollutants in the air, it would be a perpetual motion device until it left the confines of a large city.