Ocean researchers have recorded unidentified "quack" sounds in the sea for years. Credit: Mayehem / Getty Images Both scientists and sailors alike have recorded unique, strange noises in the ocean for ...

The ocean is full of many unknowns, including the mysterious sounds that often come from the deep. For instance, a mechanical ...

A mysterious duck-like sound recorded in the ocean around Antarctica has baffled scientists for decades, but the source of the sound has finally been found, researchers say. For more than 50 years, ...

Mystery solved A puzzling sound heard for decades in the waters of the Southern Ocean and off the Australian west coast has finally been identified as belonging to Antarctic minke whales. The findings ...