Grasshopper Mice are adapted to a predatory lifestyle. Their molar teeth have high-cusped shearing surfaces for puncturing and slicing, and their biting strength is increased through enlarged muscle attachments on the lower jaw and skull. Learn more about the Onychomys arenicola, more commonly known as a Mearn's Grasshopper Mouse, in this easy-to-read species overview by the Smithsonian's National Museum of Natural History.