Hi, I posted some time back about my boy Zach, being a bit of a biter and am now wondering if this is maybe related in any way to a sudden change I have noticed over Christmas, Zachary, aged approximately 18-20 months, a very boisterous, active ferret, who lives with three other female ferrets of mixed ages, is suddenly veering to the left when he walks. All of my ferrets spent Christmas day in their cage together while I was away overnight. On my return home on Boxing day, I noticed that Zach seemed rather wobbly on his feet and was swaying when he stands still. I took him to the vet the next day, but an initial exam ruled out any obvious cause. At my request, he has been put on medication on the assumption that he may have an ear infection, though he has no obvious discomfort or discharge. He veers or staggers always to the left as he walks and sometimes his left hind leg seems to give out and he pitches over on his side. However, he already seems to be compensating for this and it is not stopping him from attempting anything, like climbing to the top of his cage! I am keeping him caged when I am away so that he cannot fall and hurt himself, but he is not in any apparent distress and in fact is in great spirits and is eating, drinking and pooping normally. However the medication, (quarter tablet daily of Baytril 50mg), so far is not relieving his symptoms - early days possibly. However, I would like to know if anyone out there has experienced these symptoms in a ferret. I wonder if this is more likely to be a brain related, neurological disorder, or a symptom of something else. The other thing which I originally posted about several months back, is that occasionally, he gets a bit aggressive and wants to bite any exposed flesh and is very persistent and ignores all attempts to gently stop him. At the same time he is gradually becoming more of a "kissy" boy when he first wakes up. Unfortumately my normal very knowledgeable ferret vet has been away over Christmas and New Year. But I will call him for interpretation of a blood test that was taken last Friday and for further advice. In the meantime, any suggestions would be very helpful, especially as to likely cause and possible prognosis. Many thanks from a worried ferret-mum. Jan, Zach, Cirque, Nella and Hoots [Posted in FML issue 3650]