A MYSTERIOUS pulsing sound deep below the ocean's surface has been confirmed to have a 'biological source,' according to scientists. But the mystery beast has evaded researchers since the 1980s.

Both scientists and sailors alike have recorded unique, strange noises in the ocean for decades. They sound guttural, and ...

A MYSTERIOUS pulsing sound deep below the ocean’s surface has been confirmed to have a ‘biological source,’ according to ...

The Pulse M is not a big speaker in absolute terms, but it creates an open, wide-ranging sound that’s far larger than the cabinet from which it originates. There’s no particular sensation of a ...

"What pregnant people may hear is the ultrasound machine translating electronic impulses that signify fetal cardiac activity into the sound that we recognize as a heartbeat," ACOG states.