Robo Shark

The Robo-Shark by RoboSea is an articulated swimming robot that so resembles a real shark, that it can swim alongside them without disturbing their behavior. Able to swim over a mile away from it’s controller, at depths of up to 1,000 feet, the Robo-Shark is a fascinating device that lets researchers study aquatic life in it’s natural state. Via Uncrate:

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