Scientists built a robot fish to spy on hard-to-find ocean animals

Capturing marine life up close is tricky, but this robot could be a novel solution.
Researchers from MIT's Computer Science and Artificial Intelligence Laboratory have developed a soft, robot fish called SoFi, which can swim on its own and is lifelike in its movements as to not disturb other sea animals.
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Made of silicon rubber and flexible plastic, SoFi can swim, handle currents, snap photos and videos at depths of more than 50 feet (15