The new leech species has three jaws, five pairs of eyes aligned in a U-shape, a disc-shaped “caudal sucker” for attachment, and a long conical body that changes size and shape depending on how much ...

Doctors grabbed the leech with forceps and carefully removed the animal, now nearly 4 inches long after feeding on the man’s blood supply for at least a week, according to the report.

In fact, their use is approved by the Food and Drug Administration. Yes, they’re still sometimes used in 21st century ...