Over the past six weeks more than 100 intense and long-lived wildfires have been recorded burning north of the Arctic Circle, an “unprecedented” event since record-keeping began on such events. The fires have been most severe in Alaska and Siberia, and since the start of June have been responsibleread more

Advances in the analysis of ancient DNA have upended the scientific community’s view of how human populations migrated both into and around the North and South American continents, illustrating the rapid and complex movement of humanity into the western hemisphere towards the end of the last ice age. Aside from unraveling more of the mystery of the origins of the Americas’ first inhabitants, the studies also aided in the repatriation of a long-lost ancestor of a Native American tribe in Nevada, and the discovery of an individual with DNA from Australia that lived on the east coast of modern-day Brazil — over 10,000 years ago.