A University of Kansas researcher has spent years studying "aquaterra"—his term for regions around the world once populated by ancient humans that today are submerged under water due to sea-level ...

Migration debates often begin in the wrong place. They ask how many migrants a country should accept, which migrants should ...

Just north of the great Serengeti wildebeest migration, a smaller migration across the Mara ecosystem is collapsing. New maps published in the Atlas of Ungulate Migration reveal the dramatic impact of ...