A relatively new breed, the Ambullneo Mastiff made its debut in the early in Southern California. began this Mastiff Bulldog breeding program and another decade passed before the progeny was ready to be stored in the cryogenics bank.
Bullmastiff's are intensely loyal to their family and doesn't like being left outside. If they don't get enough companionship or personal attention, they may walk through fences just to be with people. Xena might need another large friend :) someday!