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How to buy prairie dogs
Contact your local animal shelters.
Injured or orphaned prairie dogs are occasionally turned over to shelters by wildlife services. Shelters also occasionally have domesticated prairie dogs that are surrender by their owners for a variety of reasons.
Go online to get contact information for the shelters in your area and give them a quick call. If you adopt from a shelter you will generally have to agree to get your prairie dog spayed or neutered by a certain date, if it hasn't been done already.