Labrador Retrievers descend from the St. John's water dogs of Newfoundland, which were brought to Britain in the 1800s and developed into gun dogs that retrieve from land and water. Their dense, water-resistant double coat, thick otter tail and webbed toes all come from that job. Labs come in black, yellow and chocolate, and most weigh 55 to 80 pounds.
Many are sociable, eager to please and highly food-motivated, which makes training easier and weight gain easier too. Adolescence can last until two or three years old, so a young Lab may be bouncy and mouthy. In Murfreesboro's damp, humid climate, expect heavy shedding and a wet-dog smell after greenway outings. Dogs vary, and an adult's energy level is often easier to read than a puppy's.