Newfoundland
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Best for: Families, apartment dwellers (no really) and anyone fond of using a dog brush.

One of the largest breeds – some weigh more than 200 pounds – Newfies are docile, perfect for families with small kids. With huge lungs, webbed paws, and a waterproof coat, they're skilled swimmers. Still, they don't require a ton of exercise, so they're a surprisingly good fit for apartments.