That organism will be selected against in the environment.
Explanation:
Since they do not have the traits or adaptations required to survive in this new environment, they will be selected against and die by predation or starvation etc, or its genes will be unlikely to be passed on due to sexual selection.
The color of a prairie dogs fur has evolved over time depending on their habitat. This helps the prairie dog avoid being eaten by other predators because it can camouflage itself.
