Described as "biotwang" noises, they sound like something emanating from ... out an acoustic survey of the Mariana Trench ...

And divers were left shocked after they heard an insane noise while they were at the bottom of the ocean. Seemingly with nothing other than their fellow divers and sea creatures in sight, they were ...

Scientists have finally solved the decades-long mystery of the creepy underwater quack. The strange quacking sound was first heard in the 1960s, when a submarine expedition to the Southern Ocean ...