Poodle throughout, although most AKC-registered show dogs have a lion-cut or other, similarly shaven look. The sizes of the official AKC-recognized Poodle breeds are determined by height, not by weight. Poodles are bred in a variety of sizes, distinguished by adult shoulder (withers) height. The exact height cutoffs among the varieties vary slightly from country to country. The Fédération Cynologique Internationale (FCI) recognizes four sizes of one breed: standard, medium, miniature, and toy. Non-FCI kennel clubs generally recognize three sizes, standard, miniature, and toy, sometimes as sizes of the same breed and sometimes as separate breeds. Only the FCI describes a
Schnauzer as the modern Standard Schnauzer breed and was bred as a rat-catcher and guard dog. The Giant Schnauzer and the Miniature Schnauzer were developed from the Standard Schnauzer and are the result of outcrosses with other breeds exhibiting the desirable characteristics needed for the Schnauzer's original purpose. By the VDH and FCI Schnauzer is placed in "", with "Nr. 181, 182 and 183" in "Section 1.2: Schnauzer" dedicated to all three Schnauzer breeds. In 2004 population genetics study of 85 purebred dogs, which used cluster-based methods with 4 identified genetic clusters, all three Schnauzer breeds structurally mostly clustered within "recent