Savannah

Cat

The Savannah is a domestic hybrid cat breed. It is a cross between a serval and a domestic cat. (The first was bred with a Siamese). Savannah cat is the name given to the offspring of a domestic cat and a serval—a medium-sized, large-eared wild African cat. The unusual cross became popular among breeders at the end of the 20th century, and in 2001 the International Cat Association accepted it as a new registered breed. Savannahs are much more social than typical domestic cats, and they are often compared to dogs in their loyalty. They can be trained to walk on a leash and even taught to play fetch.

http://en.wikipedia.org/wiki/Savannah_(cat)