Here's why:
* Pigmentation develops over time: A Chow Chow puppy's tongue will be pink at birth. The distinctive blue-black color develops gradually as the puppy grows.
* Genetics play a role: The blue-black tongue color is a characteristic of the Chow Chow breed, but it's not present at birth. The pigmentation is determined by genetics and takes time to fully develop.
So, while a Chow Chow's tongue may appear darker than other breeds, it's not blue-black at birth.