To see just how prevalent alien earthworm species are, the Stanford team analyzed worm records from 1891to 2021 (yes, worm records are a thing), combined that with statistics from the interception of ...

Invasive species that are introduced into non-native environments threaten ecosystems, wildlife, and human well-being.

Analysis reveals imported earthworm species have colonized large swaths of North America, and represent a largely overlooked threat to native ecosystems. The researchers warn of the need to better ...