A realistic robot fish could help scientists spy on secretive sea life

It looks like a fish, moves like a fish, but it's definitely a robot. It's name is SoFi (short for soft robotic fish), and according to its creators at MIT's computer science and AI lab CSAIL, it's the most versatile bot of its kind. And with its built-in cameras, scientists should be able to use SoFi to get close to the ...