Leeches are slimy, wormlike animals, most of which live in fresh water. They eat by sucking the blood from mammals, fish or amphibians like frogs. They are real-life vampires. To sense prey in the ...

WALKER, Minn. — Minnesota's third-largest lake has a namesake only an angler could love: the leech. Earthworm's ugly aquatic cousin. Those slimy, crawly creatures straight out of a horror film. But ...