Bison are not native to the Sonoran Desert, but they were introduced to the region in the 19th century.

The Sonoran Desert is home to a diverse range of species that have adapted to its harsh environment, including coyotes, kangaroo rats, and Gila monsters. However, bison are not native to the desert ecosystem. Bison originally inhabited the Great Plains of North America and were introduced to areas outside their natural range, including the Sonoran Desert, primarily in the 19th century for farming and hunting purposes. They do not play an ecological role in the desert's native ecosystems.