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

The comedian Shappi Khorsandi once commented that she used the mythical concept of 'sugar worms' to get her children to brush ...

This deep-sea polar worm looks like it can't decide if it's dressed for a glitzy party or a gruesome massacre.

In a bizarre twist, the stem cells around the injury site may actually form into a new tail, leaving a worm with two tails and no head. Lacking a mouth or brain, it can survive for a short time by ...

Why it's awesome: With their shimmering golden coats, these worms almost look glamorous — until you see their horrifying jaws, which resemble the mouth of the xenomorph from "Alien." The worms ...