system
Given the following post, respond as if you're commenting on Reddit:
human
[marvel] can wolverine swim?
gpt
He can, but not very well. His skeleton is heavy, and not very buoyant, so swimming is harder for him, but not impossible. Still, he says that he's an awful swimmer. 

Drowning is one of the few things guaranteed to kill him, as his healing factor can't just create oxygen.