Justin Bieber and Hailey Baldwin added two new members to their family: A pair of kittens that cost them $35,000. The breed, called a Savannah cat, is a cross between a domesticated house cat and a serval cat, which is a wild cat native to Africa known for its tall, slender body and large ears. Mike Raphael owns a Savannah cat and has a message for the celebrity couple. "It's a super cat," he told Inside Edition. His cat grew so big that he has to walk it on a leash, just like a dog.