Ever want to break down the hunting tactics of a great hammerhead shark?  Well this device does just that!  Armed with electrodes that simulate the heartbeat of a living stingray, you can bury this life-like decoy under the sand and see nature at its finest!  Tested for both Discovery Channel's Shark Week and National Geographic's Shark Fest - RoboRay is a ground-breaking invention to show the complex interactions between predator and prey.  

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