“All around the world, blue whales aren’t singing like they used to, and scientists have no idea why. The largest animals on Earth are singing in ever-deeper voices every year. Among the suggested explanations are ocean noise pollution, changing population dynamics and new mating strategies. But none of them is entirely convincing… The exciting possibility, I think, is that they’re all listening to each other,” said Whitehead. “This is a worldwide cultural phenomenon, and that’s very cool.”
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