Index to Common Creationist Claims about ERVs
This is probably the most pathetic Creationist Claim about ERVs. No, I did not make it up. Its right there in TrueOrigins 'Critique of +29 Evidences of Macroevolution '.
Evolution does not even predict the existence of ERVs, much less that they will be found at the same location in two or more species. After all, evolutionary theory was considered robust prior to the discovery of ERVs.Evilution as Darwin knew it did not predict ERVs, specifically. Mostly because DNA, RNA, retroviruses, sequencing, etc etc etc werent discovered yet. Yes, the theory of evolution worked just fine before any of those things were discovered.
Whats important is that their discoveries supported natural selection and descent with modification, thus influenced modern evilutionary theory in a positive fashion (science, unlike dogma, is not static. this is a good thing).
Over and over and over, ERVs can be traced back to create a phylogenetic tree. ERVs and their components descend with modification over time. Sometimes these modifications lead to junk, sometimes they are coopted by their host, sometimes they become such an integral part of the host that it is almost impossible to tell the DNA is exogenous.
ERVs themselves werent predicted by Darwin, but what they do and how they behave was. Descent. Modification.