So i'm very new to raising chicks, and I looked for articles on mites, and didn't really find the answer I want. Can chicks from a hatchery have mites when you get them? Can they develop them even if they aren't outside yet? Do they just naturally occur? I just don't want to get any mites from them or have any of my other animals get them ( I have 2 dogs, and 3 cats also). Is there any way to prevent them? Thanks!