Tabby is a coat pattern, not a breed. A tabby has the classic M-shaped mark on the forehead, plus stripes, swirls, spots or ticked hairs on the body. The four main patterns are mackerel, classic, spotted and ticked, and the colors run from brown and orange to gray, silver and cream. The pattern shows up in domestic cats and in breeds like the Maine Coon and American Shorthair.
There's no single tabby personality or body type. Most adoptable tabbies are medium-sized domestic shorthairs weighing about 6 to 14 pounds, and many live 12 to 18 years. Shedding is moderate, so a weekly brushing keeps up with it. Temperament comes from each cat's genes, upbringing and past experiences, so spending time with the cat tells you far more than the coat does.