Imagine if there were a robotic fish that filtered microplastic particles out of the water as it swam. Well, now there is one, and it's the physical version of the winning concept in the first-ever ...

The winner of the inaugural Natural Robotics Contest not only swims through the water like a real fish — it also helps combat pollution in the process. Created by University of Surrey chemistry ...

A 13mm-long black fish silently patrols the ocean, not to feed or predate, but to clean. Soft and squishy to touch, the flesh of this fish is made of the same material as pearls are made of. As it ...