The Havana, called the Havana Brown by some registries, was developed in Britain in the 1950s from chocolate-carrying Siamese cats and black domestic shorthairs. The look is unmistakable: a glossy chocolate coat, brown whiskers, green eyes, large forward-tilted ears and a squared-off muzzle on a moderate, muscular body of about 6 to 10 pounds.
Havanas are curious, people-focused cats that like to help with whatever's going on, sometimes patting at things with a paw. Many chat in a softer voice than a Siamese. The breed is rare, so in Las Vegas you're more likely to meet brown shorthaired cats or Havana mixes, and each cat has a personality of its own. The short, low-shedding coat keeps day-to-day care simple.