User blog comment:Mectrixctic/Re-writing Puffle article somewhat/@comment-1024726-20091017205610

Macroevolution is the kind that's banned....... and puffles could be extremophiles.....

By "not canon", I mean not part of original CP canon. The USA is fanon, which is fan-made canon based on CP canon but separate from it. The original designs are not part of canon, thus we really can't treat it as an authority on the biology of puffles.

As for the final stuff, I agree. The pouches do sort of offset the puffle's look in canon, so it would be better if they weren't marsupials.

@NAE: So improbable? Look at all the evidence there is supporting mammalian puffles (although we're not going to go that way)!