Speciation

Due to your thicker coat alongside additional tuffs and tassels around your ears (specific heat loss areas), you are able to survive the cold conditions of the North rim Grand Canyon and decide to reproduce in your environment. As a result, the breed of Kaibab squirrels possessing desirable traits continues and the undesireable inherited traits become discontinued.

Due to the geographic isolation of the two species, allopatric speciation has occurred.