Siamese descend from the pointed Wichianmat cats of Thailand, once called Siam, and arrived in the United States in the late 1800s. They're medium-sized, lithe and muscular, usually 6 to 14 pounds, with a short, fine coat that lies close to the body and no undercoat. The darker face, ears, paws and tail come from a temperature-sensitive pigment gene, and the eyes are a vivid blue.
Personality is the bigger part of the story. Many Siamese are intelligent, vocal and devoted, and they often bond closely with one person. In a home that's empty all day, a Siamese left alone for long stretches may get loud or mischievous. Cats vary, and a pointed cat of mixed ancestry may be quieter or chattier than the breed's reputation. Interactive play, puzzle toys and a companion cat can help.