The AKC rat standard terrier can be found on the AKC site as breeding guidelines to develope a healthy puppy, with the body type shown in photos. Breeders distinguish between common, mid-sized, miniature, Decker Giant and teddy Roosevelt varieties of the breed. The biggest dogs stand up to 23 inches at the withers and weigh 35 pounds; the smallest can be as small as 8 inches and weigh 4 ponds. The AKC rat standard terrier can be found on the AKC site as breeding guidelines to develope a healthy puppy, with the body type shown in photos.

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