More fuel has been added to the fiery debate about the peopling of the Americas. A recent study suggests that the mammoth bones discovered at the Hartley site of New Mexico in 2013 offer conclusive evidence that humans were in North America earlier than the conventional timeline would suggest. The butchering site includes fossils with blunt-force fractures, bone flake knives, evidence of controlled fire, and the burned remains of other animals. The mammoth bones were dated to between 36,250 and 38,900 BP, which is roughly 20,000 years earlier than previously thought. The study further suggests that, per independent genetic analysis, there could have been two founding populations in the Americas — one of which happened much earlier than the other. It bears mentioning that not long ago, archaeologists were ridiculed, and careers ruined, for suggesting such dates.