You have reached order level. Order Rodentia includes the red squirrel, and every other kind of rodent - like mice, rats, gophers and beavers. We have cut out all other types of mammals - like bears, rabbits, lions, kangaroos, monkeys, and many, many others. There are probably around 2,000 species of rodents alive today.
Click on another of the groupings to the left of the illustration or return to the Main page to learn more about classification.