Others disagree with these conclusions, arguing that the Book of Mormon mentions several animals, plants, and technologies that are not substantiated by the archaeological record between 3100 BC to 400 AD in America. Since the late 1990s pioneering work of Luigi Luca Cavalli-Sforza and others, scientists have developed techniques that attempt to use genetic markers to indicate the ethnic background and history of individual people. The data developed by these mainstream scientists tell us that the Native Americans have very distinctive DNA markers, and that some of them are most similar, among old world populations, to the DNA of people anciently associated with the Altay Mountains area of central Asia. This conclusion from a genetic perspective supports a large amount of archaeological, anthropological, and linguistic evidence that Native American peoples' ancestors migrated from Asia at the latest 16,500–13,000 years ago. (See Settlement of the Americas and Genetic history of indigenous peoples of the Americas). The mainstream scientific consensus about the origin of the ancient Americans and peoples is apparently at odds with the claims put forth in the Book of Mormon, although Mormon apologists have made efforts to reconcile these apparent contradictions. The Church of Jesus Christ of Latter-Day Saints released an essay on their website titled "Book of Mormon and DNA Studies". The conclusion states, "Much as critics and defenders of the Book of Mormon would like to use DNA studies to support their views, the evidence is simply inconclusive." Critics challenge the viability of the population size and growth of the Book of Mormon people. Lamb may have been the very first critic to suggest that the Book of Mormon has an unrealistic population growth rate. Modern studies on population size and growth have been done by John Kunich and FARMS writer James Smith. Kunich's analysis agrees with Lamb's that the Book of Mormon presents an unrealistic growth rate for the population, but Smith disagrees, and says that the growth rate is realistic. Critics point out that Joseph Smith also translated the Book of Abraham. Unlike the Book of Mormon, fragments of the documents from which Smith translated the Book of Abraham are available for inspection; Egyptologists find no resemblance between the original text and Smith's translation. Supporters point out that the Church has never claimed that the fragments of papyri which include facsimile 1, 2, and 3 are where Joseph Smith obtained his material for the Book of Abraham. These fragments are from the Egyptian Book of the Dead which was just one of the scrolls from Egypt that Joseph Smith had in his possession. When these fragments were discovered in the Metropolitan Museum many years ago, Hugh Nibley wrote a book called "The Message of the Joseph Smith Papyri, An Ancient Egyptian Endowment" showing how the fragments that had been discovered had nothing to do with the Book of Abraham but everything to do with Egyptian funeral texts from the "Book of the Dead".