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. The thick otter tail, webbed toes and dense, water-resistant double coat come from that work. Coats are black, yellow or chocolate, and field-bred dogs are often leaner and higher-energy than show-bred ones.
Many Labs are sociable and eager to please, which is why they're so common as family pets and guide dogs. They also shed a lot, and that dense coat holds heat, so Palm Springs summers call for planning. Adolescence can stay bouncy until two or three years old, and appetites are strong, so portion control matters. Dogs vary, so a Lab's age and energy matter as much as the breed.