The vast frozen terrain of Arctic permafrost thawed several times in North America within the past 1 million years when the world's climate was not much warmer than today, researchers from the United ...

Ancient human footprints, preserved in a dry lakebed at White Sands National Park in New Mexico, reveal remarkably vivid vignettes of life in the late Pleistocene: children jumping in puddles and ...

Bridge Between North and South America Was Guarded by Daunting Beasts 10,000 Years Ago, Archaeologists Find Evidence More ...

Modern ecological and geomorphological baselines along the Georgia coast of eastern North America are ... traces human occupation South America in the late Pleistocene and describes the potential ...