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 ...

Since the 1960s, a strange, repetitious quacking noise called a “bio-duck,” which can frequently be heard in the Southern Ocean, has puzzled marine biologists and underwater acoustic experts. A new ...

Mystery "quack-like" sounds detected in the ocean over 40 years may have been whales talking, suggests a new study. The noises were picked up in the Southern Ocean, off the coast of New Zealand, in ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Over 64 years ago, the ocean quacked. Specifically, sailors aboard ...