geographic barrier If after a long period of time the two

Last updated: 5/14/2023

geographic barrier If after a long period of time the two species are no longer separated what evidence is needed to determine if speciation has occurred Ammospermophilus harrisi Ammospermophilus leucurus Hybrid offspring of the two populations begin to appear The two populations are not interbreeding freely One species will increase into a population size twice as large as the other species