But they weren’t the only people to hear the sounds. In the ensuing decades, multiple instances of the strange audio—nicknamed the “Bio-Duck”—were documented, particularly in the waters ...
Ocean researchers have recorded unidentified "quack" sounds in the sea for years ... The sound is dubbed the "bio-duck" — though it doesn't sound like a duck — and you can hear an example ...
We still don't have a complete answer, but new work analyzing Bio-Duck sounds suggests that whatever is making it is having a conversation. "We discovered that there were usually several different ...