A viral video of a leech slithering across a hospital floor and leaving behind a trail of blood in its path has stunned the internet. The video was posted to TikTok on October 21 by Kaci Jane Hansen ( ...

For decades, scientists have posed one interesting question about leeches—can they jump? While the idea of jumping leeches might sound like it's only the stuff of nightmares—I still can't forget those ...