New Evidence in Historical Cannibalism Debate

An anonymous reader writes "ScienceNOW is reporting that a team of scientists led by Geneticist Jaume Bertranpetit has called into question findings from an earlier study of human prion diseases. The first study, led by John Collinge of University College London, stated that the existence of a gene that codes for prions was a result of a "balancing act" that had kept it in the gene pool for so long. The balancing act was supposedly due to widespread cannibalistic practices in human history. The new report suggests that their results were skewed because of low frequency variations known as 'ascertainment bias.'"