Bred to haul nets, carry loads and pull people from cold Atlantic water, the Newfoundland is a massive, heavily boned working dog from the Canadian island that shares its name. Webbed feet, a water-resistant double coat and a powerful, deep-chested body made it a natural swimmer and lifesaver, and many Newfies still head straight for any lake or pool they see. Most weigh 100 to 150 pounds and come in black, brown, gray or the black-and-white Landseer pattern.
Newfoundlands are famous for a sweet, patient temperament, and many are gentle with children and welcoming to visitors. Living with one means planning for size, though: heavy shedding, plenty of drool, poor heat tolerance, giant-breed food and medical costs, and a lifespan that is often around 8 to 11 years. Early manners training is essential before a puppy outgrows you.