A black Labrador Retriever is a Lab in the breed's original color, not a separate breed. Descended from Newfoundland's St. John's water dogs and refined in Britain as gun dogs, Labs have a broad head, an otter tail and a dense, water-resistant double coat. Some have a small white spot on the chest, and the muzzle grays naturally with age.
That double coat means heavy shedding twice a year, so a good brush and a strong vacuum earn their keep. Labs are food-motivated and eager to please, which makes training rewarding, but they mature slowly and stay bouncy through adolescence. Field-bred dogs are often leaner and more driven than show-bred ones, so a dog's age, energy and history should guide the match more than coat color.