The coat is smooth and tight-fitting; colors are fawn, brindled, or white, with or without white markings. However, according to the AKC's website, the boxer is now the eleventh-most popular dog breed in the United States. It is estimated that about 18% of white Boxers are deaf in one or both ears, though Boxer rescue organizations see about double that number.In the past, breeders often euthanized white puppies at birth.