<Tr> <Th> UKC </Th> <Td> Northern Breed </Td> <Td> standard </Td> </Tr> <Tr> <Td_colspan="2"> Domestic dog (Canis lupus familiaris) </Td> </Tr> <P> The Shar - Pei is a breed of dog known for its deep wrinkles and blue - black tongue . The breed originates from Canton, China . The English name (沙 皮, pinyin: shā pí) is probably derived from the British spelling of the Cantonese equivalent, sā pèih), which translates to "sand skin" and refers to the texture of its short, rough coat . As puppies, Shar Pei have numerous wrinkles, but as they mature, these loosen and spread out as they "grow into their skin ." Shar Pei were named in 1978 as one of the world's rarest dog breeds by TIME magazine and the Guinness World Records . Although the Shar Pei has been identified as a basal breed that predates the emergence of the modern breeds in the 19th century, the American Kennel Club recognized it as their 134th breed only in 1992 . </P> <P> Nearly all dog breeds' genetic closeness to the gray wolf is due to admixture . However, several Arctic dog breeds show a genetic closeness with the now - extinct Taymyr wolf of North Asia due to admixture . These breeds are associated with high latitudes - the Siberian husky and Greenland dog that are also associated with Arctic human populations, and to a lesser extent the Shar Pei and Finnish spitz . An admixture graph of the Greenland dog indicates a best - fit of 3.5% shared material; however, an ancestry proportion ranging between 1.4% and 27.3% is consistent with the data . This indicates admixture between the Taymyr wolf population and the ancestral dog population of these 4 high - latitude breeds . This introgression could have provided early dogs living in high latitudes with phenotypic variation beneficial for adaption to a new and challenging environment . It also indicates the ancestry of present - day dog breeds descends from more than one region . </P>

When do shar pei puppies get their wrinkles
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