They're tiny, blobby, butt-shaped, and glow in the dark. What the heck are they? Scientists are still figuring them out.
She lies on her side and has a mouth guard in, indicating she has undergone ... They pull numerous times before the end of the extraordinarily long worm is reached. Reacting to the stomach ...
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 ...
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 ...