The Rat Terrier is an American crossbreed that originated in the 19th century. These terriers were bred primarily as farming and ranching dogs that were able to help eradicate vermin, protect livestock, and chase small game animals. Inquisitive, smart, and affectionate, these dogs exude spunk and enthusiasm for play and for their loving guardians. Fans of the terrific Rat Terrier will love this square wall calendar. Includes a free download of the DogDays app for the smartphone and tablet, which grants access to the world's most captivating dog photos and backgrounds, fun puzzles, and a calendar featuring your favorite furry friends.