Two ancient sites found high in the Peruvian Andes reveal humans have been living at extremely high altitude since at least 12,000 years ago.
The petite Dorset people went extinct before the Vikings arrived and never mixed with Inuit or Eskimo peoples.
New study challenges the theory that Europeans introduced the disease to the New World.
Divers mapping underwater caves in Mexico's Eastern Yucatán Peninsula came upon a surprising find: the skeleton of a young, prehistoric girl.
The mysterious abandonment of Cahokia may be linked to a massive Mississippi River flood 1,800 years ago.
The maple trees used to create the Final Four court started their road to fame at the Menominee Forest in Wisconsin.
The agreement comes too late for a sacred rock carving that was stolen from a Paiute ceremonial site in California.