The original comment was removed but…

I also agree that rot is part of the normal process but HOW is this contended with?

Maybe I’m just dense, but if a part of a mammal started to necrose while still attached to the organism, there would most likely immediately be an infection present and they would probably go septic.

Nature leaves no opportunity wasted, I think it’s safe to assume that there must have been some bacteria or something like that on the flesh.

Maybe my main lack of understanding is that I am stuck thinking about how my circulatory system works, as another commenter suggested.