Which states are specifically mentioned as home to populations of *Crotalus molossus*?
Answer
Arizona, New Mexico, Texas, Utah, Colorado, California, Nevada
The distribution of *Crotalus molossus* is expansive, covering significant portions of the American Southwest before extending into Mexico. The text explicitly lists several key states within the United States where populations are found. These include Arizona, New Mexico, Texas, Utah, and Colorado, alongside mentions of parts of California and Nevada. This wide geographic footprint contributes to the observed differences in subspecies characteristics and color variation, as different local populations have adapted to distinct niches within this broad arid and semi-arid territory.

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