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Are earthworms suicidal?

Asked by intrepidium (1235points) July 24th, 2011

I’ve noticed earthworms slithering about early morning on the pavement outside my house even in this hot and dry season. There are already quite a few dried up earthworm carcasses stuck there, and I would’ve thought evolution or their biological instincts or whatever would tell them it’s a far better idea to stay underground where it’ll be cooler or moister. And where were they going anyway?

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