No one knows this better than the pair of divers who came face-to-face with a massive Ocean Sunfish while diving off the ...

The blobfish went viral with this photo, but underwater they look like a completely different fish. They sustain tissue damage when they're brought from the ocean's depths to the surface.

Luis Miguel Gutierrez Bringas, a sea-diving tour operator, captured video of a massive sunfish in its natural habitat off the coast of Mexico.

A riotous photography collection from a recent underwater mission off the coast of Chile shows new and fascinating deep-sea ...

A historic ocean liner will become the world’s largest artificial reef once it reaches its final resting place off Florida’s ...

The clicking behaviour has been described in the new study as the first documented case of a shark deliberately making sound ...

Off the coast of Brazil, a scuba diver captured something remarkable on video: a wrasse fish gripped a mollusk in its mouth, ...

Researchers at the University of Maryland are developing a new unmanned underwater vehicle (UUV) that mimics the movement of ...

When top ocean predators vanish, the ecosystems they leave behind don't just adapt—they transform in surprising and troubling ...

Nestled away in the Indian Ocean, the bank’s seagrass habitats are being decimated by a multinational fleet of fishing ships ...