BLAST IN THE PAST?

摘要

Around 13,000 years ago, North America was a busy place. Millennia of ice sheets had melted away, and humans crossed from Siberia to Alaska, spreading from the Canadian woods to the lush Carolina coastline. But after just two centuries of hunting mammoth, bison and horse, this 'Clovis' culture suddenly disappeared, posing one of the great anthropological questions of the peopling of the Americas: why did the New World's most sophisticated hunters of the time suddenly vanish?