A newly discovered bloodsucking, olive-green leech with three jaws and as many as 59 teeth has been found about 40 miles outside of downtown Washington. A team led by a researcher at the Smithsonian’s ...

A newly discovered bloodsucking, olive-green leech with three jaws and as many as 59 teeth has been found about 40 miles outside of downtown Washington. A team led by a researcher at the Smithsonian's ...

There’s one more species to add to the list of parasites that feed on human blood. Macrobdella mimicus has three muscular jaws, each of which are lined with 56 to 59 teeth, research zoologist Anna ...

WASHINGTON, D.C. — For the first time in 40 years, scientists have discovered a new species of medicinal leech in North America in a Maryland swamp. A team of researchers made the discovery in 2015 ...

WASHINGTON — Scientists with the Smithsonian have discovered a new blood-sucker in the D.C. area -- a previously unknown species of leech that has three jaws with up to 59 teeth. The scientists with ...

Good news: A new species was discovered on the Atlantic Coast. Bad news: It’s a bloodsucking leech that feeds on humans with three jaws and as many as 59 teeth. In a recently published journal, ...

The oldest leech ever discovered has turned out to be a shape shifter of expectations, preserving a body plan that looks ...

On July 29, 2008, Mark Siddall answered selected viewer questions about leeches large and small, the best way to remove one from your skin, whether he'd undergo leech therapy himself, and more. Please ...