Labrador Retrievers descend from the St. John's water dogs of Newfoundland, refined in Britain in the 1800s as gun dogs that retrieved game from land and water. Their thick otter tail, dense water-resistant double coat and strong build still reflect that work. Labs come in black, yellow and chocolate, and field-bred dogs tend to be leaner and more driven than show-bred ones.
Many Labs are sociable, eager to please and keen on anything involving people, balls or water, which is why they're a popular family dog and a common guide dog. In Montgomery, that means a dog that wants company and a daily outlet, plus a plan for shedding and a long, bouncy adolescence that can last two or three years. Dogs vary, so a Lab's age and energy matter more than the label.