You can't find all kinds of animals anywhere in the world - most of them have some areas where they live.
Some types of animals can only be found in the United States, and you won't see them anywhere else in the world.
These animals are unique to the USA because they have specific habitats and environments that only exist in this country.
Buffalos
For example, the American bison, also known as buffalo, is a large mammal that roams the grasslands of North America.
You won't find them living naturally in other countries.
Pronghorns
Another example is the pronghorn, a fast-running mammal that looks like an antelope.
It's native to the western United States and parts of Mexico.
Some kinds of alligators
The American alligator, a reptile that lives in freshwater swamps and rivers, is also exclusive to the southeastern United States.
These animals have adapted to the specific landscapes and climates of the United States, making them unique to this country.
They are a part of the natural heritage of the USA.
Conclusion
The fact that some animals can only be found in the USA make them special - so it's one more reason why you should love and respect the nature around you more.