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An earthworm invasion is killing Minnesota's ancient goblin fern
Ecosystem responses to exotic earthworm invasion in northern North
How Introduced Earthworms Alter Ecosystems · Frontiers for Young Minds
PDF) Exotic Earthworm Invasions in North America: Ecological and
Earthworm Invasion
Earthworm Distribution in the Schoolyard Ecosystem
Ecological groups and isotopic niches of earthworms - ScienceDirect
Collections :: SERC Ecosystems on the Edge Videos
Meet — but don't touch — the toxic invasive worm that experts say