The black-footed ferret is a small mammal, once found throughout the Rockies and Great Plains, where it preyed on prairie dogs. When the prairie dogs were nearly wiped out because farmers saw them as pests, the wild ferret was thought to be extinct. In 1981, a small population was discovered in Wyoming. This population plus the captive-breeding programme has saved the species.
The black-footed ferret's body is tan. They have black legs, and feet, a black tail tip, and a black face mask.
90% of the black-footed ferret's diet is prarie dogs. They also eat ground squirrels, small rodents, rabbits and birds.