These bone-eating communities are ancient, and have been on Earth for at least 100 million years. Before whales existed, bone-eating worms were eating into the skeletons of mosasaurs, ichthyosaurs and ...

This fish’s face seems to be best suited for a monster movie that the director could love. The anglerfish is one of the most terrifying creatures in the sea. It lives in the darkness with a ...

Dumbo octopuses live between 9,800 and 13,000 feet below the surface. These cute sea creatures only grow to about 8 inches tall, but the two fins on top of their heads make them stand out.

The deep sea is full of surprises, hiding creatures that look like they belong in a sci-fi movie rather than our oceans. These rare animals have adapted in incredible ways to live in a world of ...

Sea creatures keep showing up dead in California waters, and researchers may have an answer as to why. It has to do with their food. One of the largest algae blooms in Southern California has been ...

Very few people make it to the deepest depths of the oceans, which is why new discoveries are constantly made about the exotic creatures that dwell in the deep blue sea. Although these next five ...

Dive into the world of sea creatures as we explore the depths with some incredible fishing adventures. Watch as expert fishermen reel in some of the most fascinating sea life, from vibrant fish to ...

Divers found colorful sea creatures with “large” eyes off the Canary Islands and Cabo Verde and discovered a new species. Getty Images/iStockphoto Off the coast of Cabo Verde, a diver plunged ...

A group of sea creatures were seen hunting sea lions off the coast of California, officials said. Onlookers were able to get a glimpse of the “rarely encountered” group of orcas as they went ...

A version of this article appears in print on , Section D, Page 2 of the New York edition with the headline: Sluggish Behavior: ‘Devious’ Deep Sea Creature Hid Identity From Scientists.