The southern grasshopper mouse (Onychomys torridus) is a species of rodent in the family Cricetidae. It is found in Mexico and in Arizona, California, Nevada, New Mexico, and Utah in the United States. Grasshopper mice have been described as the wolves of the mouse world Because they “howl” with a high-pitched whistle. They are gray-brown or cinamon colored and were names after their diet. They eat insects including, of course, grasshoppers. The mouse is notable for its resistance to venom, and routinely kills and eats Arizona bark scorpions, a species with a highly poisonous sting.