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The ocean is going silent.

Blue whales, the gentle leviathans that swim in all but one of the world’s oceans, are the singers of the underwater world.

Their groans, whistles and clicks are famously so soothing that they count as white noise, and they may even have a pho-ne-tic alphabet.

These haunting melodies aren’t just for fun – these giants do so to socialise, get around and differentiate friend from foe.

But researchers have revealed that blue whales are singing less and less as they’re simply too hungry to do so.

Scientists have used underwater hydrophones – an aquatic version of microphones – to monitor and record their vocalisations off the coast of Monterey

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