Q: How long do ferrets live, and are they a better pet than a rat?
A: The average life span of a ferret is six to eight years, while a rat usually lives two to three years, so a ferret can live about twice as long as a rat.
Your second question is a little more subjective. I had pet ferrets first, but I also have pet rats. I think your own ability to prepare for either should be the deciding factor.
Overall, rats are smaller, require less expensive food, and generally require less veterinary care. Both ferrets and rats are fun to play with and train.