Running wheels are one of the most controversial toys in the fancy rat community. Wheels are not necessary for rats, but they can provide a good source of exercise during the long hours they are confined to their cage. Yet pet owners are divided - some believe that wheels are perfectly healthy for rats, while others insist that they will damage their spines and tails. I currently have a rat that is barbering (biting the hair off) her two front legs and I have to assume that i
