The Chocolate Boston Terrier is sometimes incorrectly described as seal colored. Genetically, a chocolate Boston (also referred to as a Brown Boston Terrier) is the same as the red Bostons, with the exception of an unidentified allele which affects whether the coat appears red or brown in the colored areas. Brown Bostons tend to be very dark brown, although they can range in color from a light milk chocolate color to a very dark chocolate brown.
Brown Bostons are considered non-standard according to the AKC standard for the breed. Learn more about the AKC Boston Terrier Standard
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