The cow goes moo. The duck goes quack. The dog goes woof. And the fish goes ... what, exactly? Toddlers aren’t the only ones asking this question. Scientists are eavesdropping on fish to research and ...

What sound does a fish make? The answer is weirder than you may think. (Video: FishEye Collaborative/The Washington Post) Scientists using new ways to eavesdrop on fish have captured a cacophony of ...