It's dinnertime and Tumai swoops into her den, bares her teeth, grabs a cow bone from a plastic dish and disappears with it into the tall grass behind her. Tumai is an 8-year-old female cheetah ...

Even mother cheetahs find it difficult to raise cubs in the wild, where mortality among cubs can run as high as 95 percent. The great majority of cubs may never make it out of the den in which ...