They're tiny, blobby, butt-shaped, and glow in the dark. What the heck are they? Scientists are still figuring them out.

“Look at this tiny, pink ... the worms were ‘chilling’ in their burrows, with only their antennae outside, probably sensing the movement of surrounding water and nearby coral polyps ...

Eunice siphoninsidiator, or the tube ambushing marine bristle worm, was discovered within the structure of glass sponges by a ...

As he shined his light on the water, large, worm-like sea creatures appeared to be swimming around, the video shows. At first, a single animal appears in the video. Then, more and more come into ...

Some species are rigid and colorful, while others are nearly translucent and flexible in the water ... worm, was discovered within the structure of glass sponges by a human-operated deep-sea ...