[snow pony]

I have three hamsters in my room, and today I got a dog, a little maltese papillon yorkie mix. She sniffed the hamster cages a few times but apart from that hasn't bothered with them, but one of my hamsters has frozen up and seems stressed about a dog being around (although we have put a blanket over his cage and he seems a bit better). Will he get used to my dog, or do I need to move him to another room permanently, or is there anything else I could do to ease his stress?