Rosie is a freelance writer living in London. She has covered everything from ancient Egyptian temples to exciting medical breakthroughs, but she particularly enjoys writing about wildlife, ...

For decades, researchers and submarine crews in icy waters off the coast of Antarctica have been picking up a mysterious quacking sound. The "bio-duck," as its called, has been heard on and off since ...

The bizarre noise was first heard 50 years ago but now scientists say the Antarctic minke whale is its source The mystery of a bizarre quacking sound heard in the ocean has finally been solved, ...

The mystery of a bizarre quacking sound heard in the ocean has finally been solved, scientists report. The noise - nicknamed "the bio-duck" - appears in the winter and spring in the Southern Ocean.