Here are 25 otherworldly images of the unique creatures, sunken wrecks, underwater art, and other surprising things that can be found in the world hidden beneath the waves.

When hundreds of eerily perfect circles were discovered on the bottom of the Mediterranean Sea, theories abounded about what ...

Scientists discovered the 1-foot-long animal while aboard a submersible several miles deep in the Pacific Ocean. Take a look.

Rising mountain peaks and sharp rock formations cover the ocean floor, with corals, sponges, fish, and tons of sea creatures ...

The shock discovery that metallic nodules could be producing oxygen in the deep sea made headlines last year – now the team ...

Miles below, a deep-sea fish approached the camera’s bait then, changing its mind, swam backward to escape. The footage turned out to be a first-of-its-kind sighting — but it wasn’t the last.

ORLANDO, Fla. – A Florida photographer went more than 163 feet under for a record-breaking photoshoot. “It feels like a story ...

It means that deep-sea swimmers, scuba divers, even casual adventurers, can now capture images with the Googe Pixel’s Night Sight and Portrait Mode underwater. It's also exciting news ahead of ...

ColobusYeti/iStock Editorial / Getty Images Plus Giant isopods like those ... just how little we know about the denizens of the deep sea. Increasing our understanding will be vital, they conclude ...