Earthworms: The Invasive Species You Didn't Know About - Upper

Are Jumping Worms and Giant Lawn Worms Real?

Earthworm invaders may be stressing out some maples

Invasive Earthworms Remain an Unknown Ecological Threat

Scientists explain earthworms' leaf-busting guts

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Crazy Worms' Threaten America's Trees And Maple Syrup : NPR

Invasion of the exotic earthworms! - Great Smoky Mountains

A crawling shape intrudes: The earthworm invasion •

Earthworms: The Invasive Species You Didn't Know About - Upper