The Chinese Shar-Pei shares this trait as well. I'd like to add that other breeds will show pigment spots, though perhaps not a fully black tongue. The Rottweiler is one that comes to mind.
CHOW
Chow Chows are the only dog breed known to have a black/blue tongue rather than a pink tongue.
The Chow Chow is the most well know purebred dog with a wholly black or blue tongue, but the chow is not the only breed with a black tongue. The Chinese Shar Pei also has a blue/black tongue.
Are you asking about the breed of dog that has blue TONGUE? If so, the breeds Chow chow and Chinese Sharpei have blue tongues.
1 is a chow chow and the other is a bull mastiff your welcome
The dog breed you’re referring to is the Chow Chow, known for its distinctive blue-black tongue. The other word for food could be "grub." So, when combined, you have "Chow" (the breed) and "chow" (slang for food).
The dog breed known for having a skinny tongue is the Chow Chow. This breed is notable for its distinctive blue-black tongue, which is often thinner than that of other breeds. The Chow Chow's unique tongue color and shape contribute to its overall appearance and breed characteristics.
probibly my puppy has spots on its tongue and shes part chow and shes fluffy
Chow chows tongues are blue/purple. You should search some pictures of them.
Some dog breeds actually have black (or blue) tongues and gums. Ask your vet if the coloration in your dog is normal or not.
A chow chow? :{
The Chinese chow-chow and the akita have black, bluish, or blue-black tongues, as do chow or akita crosses. There may be others as well. Some dogs that have a history of black dogs in their breeding, such as Golden Retrievers, have dark spots on their tongues.