Lucas Bustamante / Giant river otter (Pteronura brasiliensis) eating a catfish. Yasuni National Park, Orellana, Ecuador

Lucas Bustamante / Anhinga (Anhinga anhinga). Yasuni National Park, Orellana, Ecuador

Lucas Bustamante / Jaguar (Panthera onca) standing in mud, Yasuni National Park, Orellana, Ecuador

Lucas Bustamante / Zigzag Heron (Zebrilus undulatus) camouflaged in branches while nesting. Yasuni National Park, Ecuador

Lucas Bustamante / Scarlet Macaws (Ara macao) drinking water inside an Amazonian claylick. Yasuni National Park, Orellana, Ecuador

Lucas Bustamante / Brush footed butterfly (Lycorea sp.) caterpillar with parasitic wasp cocoons on silk threads, Yasuni National Park, Orellana, Ecuador.

Pete Oxford / Big-legged Bug or Squash Bug (Coreidae) on Heliconia Flower. Yasuni National Park, Amazon Rainforest, Ecuador. South America

Floris van Breugel / Cuernos del Paine reflected in icy lake at dawn, Torres del Paine National Park, Chile, June 2014.

Floris van Breugel / Salto Grande waterfall with Paine Grande beyond, Torres del Paine National Park, Chile, June 2014.

Floris van Breugel / Two Guanacos (Lama guanicoe) at edge of lake with Cuernos del Paine beyond. Torres del Paine National Park, Chile, June 2014.

Floris van Breugel / Flawless crystalline ice, produced through millennia of glacial pressure, floating on Lago Grey, Torres del Paine National Park, Chile, June 2014.

Tim Laman / Aerial view of morning mist above the Tiputini River in Yasuni National Park, Francisco de Orellana Province, Ecuador, July.