I just got a rat yesterday. His mother is a regular gray rat, and the father is unknown. The baby has fine, soft, gray fuzz all over. It is a little thicker on his head. He is only 5 weeks old, so maybe he will lose the coat? He doesn't look like a patchwork, sincethe hairs all over, can you help me figure out what he is? And if it's possible to breed him for true hairless babies. I can't post his picture, so if you want to see, I can email it to you.