Night of the Lepus

Giant Flesh Eating Rabbits Ravage American Southwest after Scientist Slips Up!. The trouble begins when a researcher's experiment to use hormone injections to control Arizona's burgeoning rabbit population goes terribly awry causing the cuddly rodents to get grow to enormous proportions. In order to facilitate their growth, the rabbits need extra protein, and what better source than the relatively slow-moving human population that surrounds their huge subterranean lairs?