My 9 year old Yorkshire terrier was born with gray coat. Almost overnight, she is turning brown in her face and spot on her back. She has been spayed since 6 months. Why is this happening?
This is an absolutely normal thing and is a common change as a result of aging. I have a female German shepherd who came in at three months completely black, she is now five years old and there is almost no black left on her. In fact after every "shedding season" the new coat that grows back has a slightly different color from the last, and this is completely normal and healthy.