In the largest genomic mapping of Africa's elephants to date, an international team of researchers shows that elephant ...

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same. A ...

Historians rethink North America before colonization, American racial divisions over two centuries and a Persian Empire under steady duress. By Thomas E. Ricks Some wars grind on for centuries, making ...

Indigenous Continent: The Epic Contest for North America, by Pekka Hämäläinen. Liveright. 576 pages. $40. In the 1630s, the powerful Pequot Confederacy of southern New England found itself beset by ...

Almost 2 million years before the first moon landing, someone else took "one small step for man, one giant leap for mankind." It was Homo erectus, the longest-surviving human species in history, and ...