Michael, Stick with it. They will eventually start getting along. The biting at the neck is a natural wrestling move among ferrets. Clyde has to try and establish his dominance. One way to do this is to grab the new one by the scruff and drag her around. My Nibbles did this to our new one, Bits, when we first brought her home. Let Clyde do it, but break them up if it gets too rough or the new one seems scared or starts screaming. A lot of times Bits would break free and attack Nibbles right back. There was also much chuckling going on so it seemed they were having fun. Nibbles did hiss after they would break apart, but I think it was more a "I'm the boss and I'll do that again if you don't learn it" kind of hiss. Other times she would do it to try and keep Bits away from her when she was doing something else. As long as it doesn't come to bloodshed or injury, the new one should be fine. They are resilient little creatures these ferrets. Jim, Kathy, Nibbles and Bits ("Hey, why do we sound like a dog food?") [Posted in FML issue 1307]