Earthworms

Earthworms Aren't as Good for the Soil as You Think, Nature and Wildlife

Earthworms and Your Lawn - Lawn Solutions Australia

Earthworms - native and non-native, nightcrawlers and jumping

Earthworm, Annelid, Burrowing & Soil Fertility

Alien invasion: Non-native earthworms threaten ecosystems

How Earthworms Build Better No-Till Soils, Yields

Fascinating Earthworm Facts - Grit

Pesticides to help protect seeds can adversely affect earthworms' health - American Chemical Society

Why 'exotic' earthworms are bad for Great Lakes forests