The group had been listening for underwater ... But the sound has never been officially identified, adding to the overall eeriness of this strange deep ocean tone. The Acoustics Program within ...

That day will go down in history as the day our species went to the ocean, and never looked back,’ they say, and have given ...

Since the first series, I have spent many months underwater recording the sounds of marine fish and ... in polar seas or continuously in the deep ocean. The result is that most marine mammals ...

During the Cold War, the US Navy had commissioned a secret base off the coast of Bermuda to map the sonic landscape of the ocean. Frank and his research colleagues perfected an underwater microphone ...

Deep in the Pacific, humans have tracked a mysterious whale’s call for decades—but no other whale seems to respond. And now, we might be running out of time to find the source.