Hello everyone, I have an 8 month old sable ferret who is in great health and just had a wellness exam a few weeks ago. He's in the process of growing in his winter coat and, all of a sudden, his undercoat between his shoulderblades has turned bright, pumpkin orange. It's just this one spot. I'm used to some orange undertones with my silver roan, but this is such a strange, centralized location. The skin is normal, the hair feels normal... it's just a different color. He's acting normally, all vitals are normal. Any ideas why he could have developed this? Should I be racing him to a vet?