At the Caldwell Zoo in Tyler, Texas we spot a fox high on a rock in his habitat. The red fox is a small mammal that inhabits most of North America, Europe and Australia. The fox is a carnivore that feeds on insects, worms and crayfish. They will also eat fruits and some vegetation as well as small rodents, birds and fish. The fox has a very good sense of hearing that it uses to hunt its prey. They are very quick and agile as well.