The Newfoundland is a giant working dog from the island of Newfoundland, Canada, built to haul nets and carts and to pull people from cold water. Webbed feet, a water-resistant double coat and a deep chest explain the breed's love of swimming. Most weigh 100 to 150 pounds and come in black, brown, gray or the black-and-white Landseer pattern.
Newfies have a reputation as gentle, patient "nanny dogs," though every dog differs. In DC, the practical questions are heat, stairs and room: a dog this size needs a cool floor in summer, an easy route in and out of the building, and steady manners training so a friendly lean doesn't topple a visitor. Expect heavy shedding, plenty of drool and a lifespan of roughly 8 to 11 years.