Mushmom can heal herself?

I am about 70% sure that about half the monsters in the game should be able to recover Hp (and Mp?) over time... It might just be slower with some monsters than others, I also think most Area Bosses(Master Monsters) have this function to recover over time. Some maplers just keep attacking or dealing damage without stoping, so it is never noticeable. I am sorry if this offends anyone!