A 437-million-year-old fossil from a deposit in Wisconsin could be the oldest species of leech ever found. By Jack Tamisiea If you look around Waukesha County in Wisconsin today, it can be difficult ...

For months, researchers returned to a single cave in southern China to collect an unusual kind of leech. Shibabdella wulingensis is found nowhere else in the world except the groundwater of Shibadong ...

Wading through swamps, letting bloodsucking parasites cling to your bare legs… all in a day's work. Meet the leech collectors—unsung heroes (or victims?) of medieval medicine’s darkest days. Supreme ...