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 ...
This leech has a scary appetite. But it might be essential to its ecosystem. The largest terrestrial leech in the South, Haemopis septagon, has terrifying eating habits. Yet, its presence in pristine ...
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