Some dog breeds actually have black (or blue) tongues and gums. Ask your vet if the coloration in your dog is normal or not.
Usually it is not normal i think you should take it to a bird specialist or vet.
Yes, and while it's not exactly common, it's very normal.
A tongue with a barbell in it.
The black-cheeked lovebird, scientifically known as Agapornis nigrigenis, was discovered by ornithologist Dr. John J. D. von Berlepsch in 1900. This species is native to the forests of central and southern Africa, particularly in the regions of Angola and Namibia. The lovebird is characterized by its distinctive black cheeks and vibrant plumage. It has since become popular in aviculture due to its charming personality and social nature.
Well, as they are called black bears, a black bears tongue is actually blue.
No, its not. Go see your piercer.
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.
No, the Keeshond has a pink tongue. Only Chow Chows and Chinese Shar-Pei have a black-bluish tongue.
Not really
One can buy a lovebird from a local pet store for a good price. One can adopt a lovebird from a rescue shelter or directly buy the lovebird from a bird breeder.
It means the tongue is normal. Papillae are the tiny protuberances on the surface of the tongue housing your tastebuds.