Naval sonar has been linked to mass strandings of otherwise-healthy whales for nearly two decades, but the precise mechanisms of how it affects whales has eluded scientists. Now, researchers have explained key details of how this disruptive signal triggers behavior in some whales that ends in death.

Previously, necropsies of beaked whales from multiple stranding incidents found nitrogen bubbles in their body tissues, a hallmark of decompression sickness, or “the bends.” This dangerous condition also affects

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