Robot shark: GhostSwimmer drone developed by U.S. Navy looks and swims like a shark - YouTube
Amazon.com: TEMI Remote Control Shark Toys, 1:18 High Simulation Scale Fish with Light & Spray Water for Lake Bathroom Pool Halloween Christmas Birthday Gift Electric RC Boat for Kids Ages 4 5
Metal robot shark 3D model | CGTrader
Close-up of a robotic shark swimming underwater Stock Photo - Alamy
File:MythBusters Bruce Robot Shark.jpg - Wikipedia