An endangered baby Bornean orangutan, Pongo pygmaeus, named Aurora, with her adoptive mother, Cheyenne, a Bornean/Sumatran cross, Pongo pygmaeus x abelii, at the Houston Zoo. © Photo by Joel Sartore/National Geographic Photo Ark

From the series "I Live in a Mansion on the Other Side of the Moon." © Nicole Arja Kouri

In the Upper Xingu region of Brazil's Mato Grosso state, a group of Waura Indians fish in the Puilanga Lake near their village. Brazil, 2005. © Sebastião Salgado/Amazonas images-Contact Press Images