Today I Learned (TIL)

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TIL the common earthworm mates once a year and can live 4-8 years (www.vigienature-ecole.fr)

submitted 2 years ago by NataliePortland to c/til

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[–] sleet01 2 points 2 years ago

I found out just a few years ago that many earthworms are invasive species in North America: https://en.m.wikipedia.org/wiki/Invasive_earthworms_of_North_America.

Apparently the last ice age cleared out all the earthworms north of the 49th, and existing native species didn't migrate back after the glaciers receded, leaving many northern and west-coast forests without earthworms at all.