The continued geographic isolation of Kaibab squirrels from Abert squirrels has allowed the animals to evolve into two distinct subspecies. This is an example of:
A) hybridization.
B) allopolyploidy.
C) adaptive radiation.
D) allopatric speciation.
E) sympatric speciation.

Question

Quizplus · Accepted Answer

The geographic isolation of Kaibab squirrels from Abert squirrels leading to their evolution into two distinct subspecies is an example of allopatric speciation. This process occurs when populations of the same species become isolated from each other due to geographic barriers, leading to reproductive isolation and eventually, the evolution of new species.

The Continued Geographic Isolation of Kaibab Squirrels from Abert Squirrels