An exotic worm from Asia has been spotted here. Wikipedia says Bipalium adventitium was introduced accidentally into the U.S., and climate change is bringing it here. It’s been spotted in Mount Royal park and in Westmount.
The species produces tetrodotoxin, a neurotoxin probably more familiar from stories about fugu. Wikipedia also mentions that it preys on earthworms, a species we need to protect.



John B 09:56 on 2023-08-19 Permalink
If you want to go down a bit of a rabbit hole, earthworms are actually an invasive species in Canada, and most of North America.
Kate 10:21 on 2023-08-19 Permalink
I did not know that. But don’t our agricultural techniques rely on them now?
John B 10:42 on 2023-08-19 Permalink
I’m not sure how reliant we really are. We may well be, as we’ve imported our agricultural techniques from Europe too, but first nations had plenty of agriculture before worms got here.
The more I think about it, the more I suspect that we could grow food just fine without earthworms. They speed composting and decomposition, but there’s other stuff that would do it in the absence of earthworms.
There’s also the jumping worm, which is a similar… can of worms.
EmilyG 21:41 on 2023-08-19 Permalink
Didn’t have toxic worms on my apocalypse bingo card.