For years, a strange and unsettling noise coming from the Mariana Trench, the deepest part of the ocean, puzzled scientists.

Researchers long believed sharks to be silent animals based on their anatomy, but unprecedented evidence shows the rig shark ...

Researchers from Cardiff University have discovered a signal which could help identify the resting place of the Boeing 777 ...

You might hear a variety of unusual sounds while your underwater, as given the fact that its not our natural habitat, a lot of noises might come as a surprise. But one thing you never want to hear ...

Some days the high-speed news cycle can bring more questions than answers. WSJ’s news explainers break down the day's biggest stories into bite-size pieces to help you make sense of the news.

But for the Blue Planet II sound team, the challenges of portraying natural underwater soundscapes are many. Contrary to Cousteau’s notion of ‘the silent world’, the oceans are alive with sound.