Geneticists have unearthed a serious occasion within the historic historical past of sturgeons and paddlefish that has important implications for the best way we perceive evolution. They’ve pinpointed a beforehand hidden ‘complete genome duplication’ (WGD) within the frequent ancestor of those species, which seemingly opened the door to genetic variations which will have conferred a bonus across the time of a serious mass extinction some 200 million years in the past.