endemic

You could travel the globe, but there's only one place you'd find a ruffed lemur: Madagascar. It is an endemic species. In the wild, it lives only in one region and nowhere else on Earth. There are thousands of animal and plant species endemic to Madagascar. Since endemic species are not widespread, they're very vulnerable to threats such as habitat loss. Many endemic species around the world are endangered or already extinct.

Definition: native to and living in only a certain region
Significance: Many endemic species are at risk of becoming endangered or extinct. This is often due to human activities such as habitat loss (clearing of fields to plant crops; build buildings), hunting, and poaching.
Cool Fact: In the United States, endemic species are found in isolated areas from Hawaiian forests to the Chesapeake Bay.