Savannah basic information
Savannahs tend to be one of the larger breeds of cats, ranging up to 32 pounds (most other domestic cats range in the area of 5.5 and 16 pounds). The earlier generations, F1's to F3's or so, tend to be larger than the later generations. Also, the males are often larger than the females.
The bodies of Savannahs are long and leggy--when a Savannah is sitting, their hind legs are often higher than their spine, like a Cheetah. Their heads tend to be longer than they are wide, and like their serval ancestors, they have long necks. Also like servals, they tend to have spots on their ears, and their tails are about 3/4ths the length of other cats'.
The coat of a Savannah depends a lot on the breed of cat used for the domestic cross. Early generations always have some form of dark spotting on a lighter coat, and many breeders employ "wild"-looking spotted breeds such as the Bengal and Egyptian Mau for the cross to preserve these markings in later generations. The Savannah can have a tan coat with black or brownish spots, or a silver coat with dark spots, a marble pattern, and many other patterns and combinations, although the TICA breed standard limits member cats to Black, Brown Spotted Tabby, Silver Spotted Tabby and Black Smoke types only.