As already covered, he has bone claws after magneto pulled the adamantium from him.
During the comics afterwards, his claws got stomped (iirc by sabertooth), and broken in half.
They regrew fairly quickly, but were deformed for a while. Lost track of that run, but they eventually got put back to his normal.
Overall, Wolvie can regrow anything except the adamantium, and even that isn’t off the table since if he had a source for it, his power could conceivably use it to reproduce what was there.
Fwiw, he’s been blown up to the point he was nothing but the adamantium and some random bits, then recovered (iirc it was in the MAX days during a crossover with punisher, and daredevil . Might have been someone else involved too, can’t recall.
Last I read anything, his healing factor was essentially able to start from a single cell. As long as there’s something left, he’ll heal. Not quite lobo level where a cell isn’t necessary, but I expect something will happen where it gets turned into that at least temporarily. Deadpool is more or less at that level as well; he came back from being burnt to ashes by a lightning strike. So there’s precedent for healing factors the go beyond cellular activity alone
Murse@slrpnk.net 2 hours ago
…what happens if he gets cut in half, perfectly midline/saggital and the two halves are separated so they can’t just heal back into eachother?
Does each side heal into a separate whole Wolverine?
You could pin his left side down onto some kind of reciprocating base that moves adjacent to a razor or saw, and just time the back and forth motion to correlate with his regeneration.
Basically a deli meat cutter, but used to print an army of Logans. Or a literal deli meat slicer depending on how you plan on using the Logans.
Have the comics/movies tackled this yet?