Quite possibly, that is your dog's mature skin color. Dogs, just like people, have varying skin colorations. If you think there is something wrong with the dog, however, by all means, take it to a vet and have it checked out.
Most pug`s skin does turn black but if your are worried call your vet
why is my chihuahas skin turning black
If your female dog's nipples are turning black and she has black patches on her skin, this may be normal for her specific breed. If it is not, she may have Black Skin Disease, also known as Alopecia X.
Anything that has teeth can bite.
about 10-15 lbs
http://www.helium.com/items/597008-why-do-some-jewelry-metals-turn-skin-green
Black stools can mean blood or infection. Contact your vet.
The skin of a banana turns brown or black because the skin is very sensitive and when it is kept in cold temperatures... the skin begins to low its quality, therefore turning it darker.
Chihuahas are themselves a dog breed. Perhaps you mean if they belong to the small, medium or large dogs' categories? If so, then Chihuahas are one of the small breeds.
Maybe it's because you have very dirty eyebrows
How would I know silly. Chihuahas should'nt wear clothes!
No you can not get black skin
Because the Yersinia pestis bacteria forms back boils on the surface of the skin. Look at the picture at the link below to answer your question. Internal bleeding also cause blood to pool under the skin, turning it black.
The chemical reaction that occurs is little particles in the air react with your skin and turns the color yellow. Iodine kills your skin and will eventually turn it black.