You can have ear mites or fur mites, or both, I guess. In the ears, they'll be scratching alot and you'll probably see 'dirt' in their ears. In the fur, they may also scratch and will start losing hair. You'll also see bits of dandruff on the skin. It's really hard to see fur mites. You almost have a take a sample of the hair from the affected area and look at it under magnification to see them.
I don't think mites can/will live on humans.