John Cancalosi / Maydruna Indian children playing in mud, Amazon Basin, Peru.

Ingo Arndt / Old Rubber Tree in rainforest showing scars from tapping, Yavari River, Amazon Basin

Ingo Arndt / Old Rubber Tree in rainforest showing scars from repeated tapping, Yavari River, Amazon Basin

Pete Oxford / Pygmy Marmoset (Cebuella pygmaea) world's smallest primate on a tree trunk in the Amazon, South America

Pete Oxford / Pygmy Marmoset (Cebuella pygmaea) world's smallest primate on a tree trunk in the Amazon, South America

Pete Oxford / Pygmy Marmoset (Cebuella pygmaea) world's smallest primate on a tree trunk in the Amazon, South America

Pete Oxford / Humboldt's Woolly Monkey (Lagothrix lagotricha) hanging in a rainforest tree using its prehensile tail, Amazon, South America

Pete Oxford / Pygmy Marmoset (Cebuella pygmaea) world's smallest primate clinging to a tree trunk in the Amazon, South America

Gerry Ellis / Hawk Moth (Pseudosphinx tetrio) caterpillar phase, western Amazonia