DARPA's Newest Drone Submarine Detection Device: Snapping Shrimp

Stick your head underwater near a reef and you may hear the sound of bacon frying. The tempting sound comes from the near-comically oversized claws of snapping shrimp — they slam shut fast enough to create bubbles of air that disappear with a loud pop. The crackling of countless shrimp clacking together is mixed with fish grunts, whale and dolphin calls and other sounds underwater to create what's called the oceanic soundscape. It's the kind of biological white noise you might fall asleep to

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