When Georgia, a white Siberian tiger, didn’t leave her den Thursday night, her caretakers knew something wasn’t right. “When a tiger doesn’t come out of the den to eat or something, we know there’s something wrong,” said C.W. Wathen, founder and general manager of the Chestatee Wildlife Preserve in Dahlonega. So he turned on the camera in Georgia’s den and saw something he didn’t expect — four tiny tiger cubs.