Human populations can be defined by any characteristics such as mortality, migration, [[family]], public health, work and the labor force, and family planning. Various aspects of human [[behavior]] in populations are also studied in [[sociology]], [[economics]], and [[geography]]. | Human populations can be defined by any characteristics such as mortality, migration, [[family]], public health, work and the labor force, and family planning. Various aspects of human [[behavior]] in populations are also studied in [[sociology]], [[economics]], and [[geography]]. |