Mark Moffett / Embera Choco people use a distinctive kind of blowgun and secretion from Golden Poison Dart Frog (Phyllobates terribilis) to poison on their darts for hunting, Colombia

Mark Moffett / Golden Poison Dart Frog (Phyllobates terribilis) used by Embera Choco Indians to poison their darts for hunting, Colombia

Mark Moffett / Embera Choco Indian tasting curare from the sap of a tree, curare is used to poison the tips for hunting arrows, Colombia

Mark Moffett / Embera Choco Indian collecting curare from the sap of a tree which is used to poison the tips for hunting arrows, Colombia

Tui De Roy / Collagua Indian woman in traditional dress herding livestock home for the night, dry season, Colca Canyon, Peru

Tom Vezo / Anasazi Indian cliff dwellings built around 1060 AD, Canyon de Chelly National Monument, Arizona

Christian Ziegler / Embara Indian woman making basket using strong fibers from leaves of various palms that have been treated and dyed, Barro Colorado Island, Panama

Claus Meyer / Waiu Indian holding a baby goat, largest surviving tribe in Colombia

Claus Meyer / Caiapo Indian group in traditional ceremonial costume, south Amazon ecosystem, Brazil

Jim Brandenburg / Pueblo or Anasazi Indian cliff dwellings built around 1200 AD, Cliff Palace, Mesa Verde National Park, Colorado

Michio Hoshino / Athabaskan Indian woman, 112 years old, Alaska

Michio Hoshino / Gwich'in Indian with Caribou (Rangifer tarandus) kill, Arctic National Wildlife Refuge, Alaska