That fox is so cute! Is the biting just being playful, being aggressive or is it something they get over as they become more tame/get to know you better? And you said he plays with your cat? Does that go well? How long did it take them to get acclimated to each other?

The silver fox project is REALLY cool in my opinion. Seeing the process of domestication and HOW IT CHANGES THE PHYSICAL APPEARANCE of the animal is fascinating to me. There was a great article about domestication of wild animals in Nat Geo that talked about this experiment.