An SBT Savannah has a minimum of 4 generations between him and the Serval. By mixing Savannah F1's, F4's and F5's, we get an SBT Savannah, a pure breed ensuring descendants for 3 generations of Savannahs. The look of the SBT is comparable to an F4 or F5, however, the SBT is of a superior quality than an F4 or F5, generally distinguishable by its character and personality. The SBT gets along very well with other domestic pets around the house.