Ear to ear we hear.
Same Unknown Animal:
The ocean roars.
The Ocean Roars: Composition for Glockenspiel
What created this strange sound in Earth’s Pacific Ocean? …a loud and unusual sound, dubbed a Bloop, captured by deep sea microphones in 1997…. Bloops are some of the loudest sounds of any type ever recorded in Earth’s oceans, their origin remains unknown… audible 5,000 kilometers away. Although the sound has similarities to those vocalized by living organisms, not even a blue whale is large enough to croon this loud…. point[ing] to the intriguing hypothesis that even larger life forms lurk in the unexplored darkness of Earth’s deep oceans. No further Bloops have been heard since 1997, although other loud and unexplained sounds have been recorded.