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The U.S. state of Alabama is home to these known indigenous mammal species. Historically, the state's indigenous species included one armadillo species, sixteen bat species, thirteen carnivore species, six insectivore species, one opossum species, four rabbit species, twenty-two rodent species, and three ungulate species. Four of these native species have become extirpated within the state, including the American bison, cougar, elk, and the red wolf.
There are six known introduced mammal species in the state. These include the black rat, brown rat, fallow deer, feral swine, house mouse, and nutria. Several other mammal species have had verifiable sightings within the state, but are believed by biologists to be without established breeding populations. These include the California sea lion (in Mobile Bay), ring-tailed cat, and jaguarundi.
Human predation and habitat destruction has placed several mammal species at risk of extirpation or extinction. The Alabama Department of Conservation and Natural Resources lists the conservation status of each species within the state with a rank of lowest, low, moderate, high, and highest concern.