I venture to propose that such an inextricable link applies not merely to the intellectual, but also to the physical nature of organisms as well. Countless instances of intraspecies mixing can be documented; if the polar bears meet their near-inevitable end due to the change in climates, their offsprings, pizzlies or grolars, by way of crossbreeding with their neighbor grizzlies will live on with their genomes in the same fashion humans carry traces of DNA from Neanderthals. Thus, in defiance of any theories of "pure breeds", our existence necessarily comprises of the lineages of past organisms, extinct or not, and the implausibility of purity in any species is only as great as the degree to which such a concept is romanticized. Perchance the apparition might appear stultifying and therefore be denied by many, but the mutable nature of existence and life is nothing short from spellbinding to me.