A chocolate Lab is a Labrador Retriever with a liver-brown coat, one of three colors the breed standard accepts. The breed grew out of Newfoundland's St. John's water dogs and was developed in Britain as a gun dog, which explains the love of retrieving and swimming. Adults usually weigh 55 to 80 pounds and stand 21 to 25 inches tall, with a dense, water-resistant double coat.
That coat sheds year-round and more heavily in the changing seasons, so regular brushing is part of the deal. Chocolates tend to have more ear and skin trouble than other Lab colors, and research suggests somewhat shorter lives, so a lifespan of 10 to 13 years is a fair expectation. Like any dog, each Lab has its own personality, and a rescue adult's behavior says more than its coat color.