A crawling shape intrudes: The earthworm invasion •

Prior to the arrival of Europeans, earthworms were absent from the fauna of the northern part of North America.

Earthworms - native and non-native, nightcrawlers and jumping worms - Sally Morgan - Living on one acre or less

Animals News, Articles

NNZ-nightcrawler

The Insect World, by Louis Figuier, a Project Gutenberg eBook.

Night of the Invasive Earthworms: A Horror Story for Northern Forests – Naturalis Historia

Revenge of the Earthworms

Alien Species.vp - IUCN

Richard Pallardy's Journalist Portfolio

invincible cause - Geometric Shapes by PachoAI

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