She’s a different kind of blood donor. Think your pet leeches off of you? An Oregon woman sent shudders across social media after revealing that she keeps leeches as pets — and even lets them suck her ...

Michael Tessler realized his life had taken an odd turn. His days were spent not in an office, not out with friends — but alone in the woods, attracting leeches. Sometimes, they were so bountiful that ...

It's the beginning of the spooky season, which means ghouls, ghosts, and bloodsuckers abound. One of the most famous bloodsuckers in nature is, of course, the leech. These parasites feed on blood and ...

A newly discovered fossil has fundamentally changed our understanding of leech evolution. Once believed to have appeared around 150–200 million years ago, leeches are now confirmed to be at least 200 ...

There has long been anecdotal evidence of the wormy creatures taking to the air, but videos recorded in Madagascar at last prove the animals’ acrobatics. By Veronique Greenwood Veronique Greenwood ...