In Animal Man #2, Buddy "Animal Man" Baker loses an arm.
I remember the moment, having read the comic when it came out. It was quite shocking, indeed.
In the next issue, however, Buddy got better, as characters often do. Unlike many characters, however, Buddy does so on panel and as a function of his superpower (the power to copy the abilities of nearby animals).
The solution is elegant and simple -- earthworms are everywhere -- and yet demonstrates how absurd and impactful Buddy's powers are (not a lot of heroes can casually REGROW an arm).
But there is loose thread here. One I expected the writer to follow up on at some point (instead of rambling on with post-modernistic talking foxes and the like).
Buddy's arm wasn't atomized; it was separated whole from his torso and is lying nearby.
When Buddy used the earthworm power, it seems possible that THE ARM WOULD START TO REGROW THE REST OF HIM.
Naturally, that would take longer than Buddy "just" regrowing an arm. But it seems quite within the realm of the possibility that a second Animal Man would, at some point, turn up, the result of his severed arm doing the earthworm thing.
And yet it remains an unvisited idea, now buried under multiple universal reboots.












