The Maine Coon comes from New England farms and harbors, where cats that arrived with British settlers adapted to hard northern winters. It's the largest non-hybrid pedigreed breed, with a long rectangular body, a shaggy water-resistant coat, a frontal ruff, tufted ears, snowshoe-like paws and a plumed tail. Brown tabby is the classic color, but nearly every color appears.
Many Maine Coons are sociable, playful and a bit dog-like, following people from room to room and chirping rather than meowing loudly. They mature slowly, often taking three to five years to reach full size. In an SF home, plan on regular combing, sturdy furniture and oversized litter boxes. Cats vary, so a given Maine Coon may differ from this typical description.