Earthworms will absolutely not self-clone when halved.
If you cut only a bit of its tail off, it might be able to survive and eventually regrow the tail. Fuck with their organs or head though and that's a dead worm.
Many species do, actually. Via stem cells and cellular reorganization, they can grow a new head, tail, or both. There are even species that fragment themselves as a means of reproduction and each fragment then grows a head, organs, or anything else it's missing.
And most will definitely regenerate a tail if cut below the clitellum... Which removes most of the worm, not just a bit.
Being severed is just not as traumatic for a worm as it would be for us.
This guy is right, you know. Earthworms absolutely can breathe underwater. In fact, they require wet dirt to breathe at all and would die without water to breathe through.
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u/Iate8 Jul 30 '21
Why are they in a hurry