When considering which deep-sea creature has the biggest teeth, the answer depends on what you mean by “biggest!” The fangtooth Anoplogaster cornuta has the biggest teeth of any ocean animal compared ...

A deep-sea submersible found worms and snails living in cavities below the sea floor — the first time animals have been discovered in such habitats. The creatures may have been pushed into their ...

"I believe I was a little bit crazy, but I like that." ...

As many as 100 new species of deep-sea animals may have been discovered living on undersea mountains. While the identity of the species will take time to confirm, it’s hoped they will help efforts to ...

More than 5,000 animal species previously unknown to science live in a pristine part of the deep sea. Their home — called the Clarion-Clipperton Zone — sits in the central and eastern Pacific Ocean ...

A group of sea animals that first appeared more than 500 million years ago may share a wormlike ancestor with two other ...

From sharks that don’t hunt other sea creatures to slugs that can photosynthesize, here are some of the rarest marine animals that may surprise you. Helmet Jellyfish: With a helmet-shaped bell and ...

To build more efficient pumping systems, engineers might take inspiration from a tiny filter-feeding sea creature encased in a gelatinous structure known as a "mucus house" or "snot palace." New ...

A new study shows one species of sea cucumber lives much longer than previously thought, putting it at even more risk of ...