What's popping? Humpbacks off South Africa, new acoustic study finds

In 2019, researchers sailed to a sprawling seamount off the coast of South Africa, and lowered hydrophones to the seafloor. They picked up all kinds of noises: waves, the crackling of the reef, dolphin clicks and whistles, and an assortment of humpback whale calls. Mixed in with the humpback sounds were noises reminiscent of gunshots. Right […]

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