Deer Mice are generally two-toned in appearance, with a lighter, often white, underbelly. Most will have a bicolored tail. They may grow to around 7″ in length, and can access areas roughly the size of a dime because of their smaller frames. Deer mice are accomplished jumpers, and skilled runners as opposed to the house mouse. The common name of “deer” mouse refers to these abilities. Deer mice use their sharp teeth to eat just about anything they can find — they can chew through hard shells and will eat anything from vegetation to snails. Deer mice will also catch their food, often utilizing attic or crawl spaces to do so.