You can find pet rats in a lot of pet stores, or animal rescues. You can find wild rats just about anywhere.
Why do you? Same reason, old age.
Yes, try your local pet shop, rats are intelligent animals and make interesting pets.
They get blind with old age, and red-eye rats have more chance of blindness. They can get tumas, and cancer, which they normally get from old age.
the oldest is probably 3 or 4 but for rats its 7
No. All pet rats are vaccinated.
All pet rats are the same. They are all called fancy rats except for the Albino which is slightly smaller than the regular fancy rat. If you go to the pet store and see tanks that say small, medium, and large rat you should know that the small rats are simply babies and the large rat are older.
It depends on the pet store. They may if they sell both Dumbo, fancy and standard rats. They will likely put it in with the standard rats. This means it will likely be sold as a feeder.
In my experience as a pet store employee the vast majority of rats and mice that are bred and sold go as feeder animals for reptiles, birds of prey, and various other animals.
its not all pet rats its just the ones that are black and white because it looks somewhat like a tuxedo
Yes
No, they can sometimes prevent them!