A black Lab is the Labrador Retriever in its original and most familiar color, not a separate breed. The breed traces back to the St. John's water dogs of Newfoundland, which British sportsmen refined into gun dogs. Adults typically weigh 55 to 80 pounds and have a broad head, an otter tail and a dense, water-resistant double coat that sheds moderately to heavily.
Color doesn't change personality. Most black Labs are friendly, food-motivated and eager to please, though dogs vary with age, background and whether they come from field or show lines. Expect daily exercise, consistent training, measured portions and plenty of brushing in Decatur's shedding seasons. Labs also mature slowly, so a bouncy, mouthy adolescence is common.