Claus Meyer / Amazon Water Lily (Victoria amazonica) flower and lily pad, Amazon, Brazil

Claus Meyer / Tiger-striped Leaf Frog (Phyllomedusa tomopterna) or Barred Leaf Frog, portrait, Amazon ecosystem, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea) endangered, pair, world's smallest primate, Amazon, Brazil

Claus Meyer / Emperor Tamarin (Saguinus imperator) portrait, Amazon ecosystem, Brazil

Claus Meyer / Blacktail Piranha (Pygocentrus piraya) underwater portrait, Amazon, Brazil

Claus Meyer / Silky Short-tailed Bat (Carollia brevicauda) feeding on fruit, Amazon ecosystem, Brazil

Claus Meyer / Aquatic Coral Snake (Micrurus surinamensis) showing warning color pattern, Amazon ecosystem, Brazil

Claus Meyer / Red Uakari (Cacajao rubicundus) male feeding on fruit, Amazon ecosystem, Brazil

Flip Nicklin / Amazon River Dolphin (Inia geoffrensis) underwater portrait, Brazil

Flip Nicklin / Amazon River Dolphin (Inia geoffrensis) pair underwater, Brazil

Flip Nicklin / Amazon River Dolphin (Inia geoffrensis), Manus, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) being freeze-marked by biologists Tony Martin and Vera da Silva, Mamiraua Reserve, Amazonia, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) captured by research team, Mamiraua Reserve, Amazonia, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) captured by scientist Vera da Silva, Mamiraua Reserve, Brazil

Pete Oxford / Amazon Water Lily (Victoria amazonica) pads, Pantanal, Brazil

Kevin Schafer / Flooded forest, habitat for the amazon river dolphin, Rio Negro, Amazonia, Brazil

Kevin Schafer / Flooded forest, habitat for the amazon river dolphin, Rio Negro, Amazonia, Brazil

Kevin Schafer / Flooded forest, habitat for the amazon river dolphin, Rio Negro, Amazonia, Brazil

Kevin Schafer / Flooded lowland forest, habitat for the amazon river dolphin, tributary of the Rio Negro, Amazonia, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) researchers, Vera da Silva and Tony Martin, looking at identification pictures, Mamiraua Reserve, Amazon, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) trio fed by tourist, Mamiraua Reserve, Amazon, Brazil

Kevin Schafer / Amazon River Dolphin (Inia geoffrensis) on boat after being captured for research, Mamiraua Reserve, Amazon, Brazil

Luciano Candisani / Rubber tapper extracting latex, Tapajos Arapiuns Reserve, Amazon, Brazil

Luciano Candisani / Large area of amazon forest cleared for cattle farming, Rondonia, Brazil

Luciano Candisani / Water Lily (Nymphaea sp) pads and other aquatic plants in stream, Amazon, Brazil

Luciano Candisani / Water Lettuce (Pistia stratiotes) in Tapajos River, Amazon, Brazil

Flip Nicklin / Amazon River Dolphin (Inia geoffrensis) rescued from drying irrigation ditch off the Orinoco River, Lago De Prata, Brazil

Claus Meyer / Gray Grosbeak (Pitylus grossus) portrait, Amazon ecosystem, Brazil

Claus Meyer / Green Oropendola (Psarocolius viridis) and nests hanging from tree, Amazon ecosystem, Brazil

Claus Meyer / Red-chested Mustached Tamarin (Saguinus labiatus) calling, Amazon ecosystem, Brazil

Claus Meyer / Woolly Spider Monkey (Brachyteles arachnoides) portrait, Atlantic Forest ecosystem, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha) hanging in tree, Amazon ecosystem, Brazil

Claus Meyer / Northern Night Monkey (Aotus trivirgatus) portrait, Amazon ecosystem, Brazil

Claus Meyer / Jaguar (Panthera onca) hidden amid tall grass, Amazon ecosystem, Brazil

Claus Meyer / Red Uakari (Cacajao calvus) feeding on fruit, Amazon ecosystem, Brazil

Claus Meyer / Red-backed Saki (Chiropotes satanas satanas), Amazon, Brazil

Claus Meyer / Colubrid Snake (Chironius sp) portrait, Amazon ecosystem, Brazil

Claus Meyer / Bird Snake (Thelotornis sp) camouflaged among tree leaves, Amazon ecosystem, Brazil

Claus Meyer / Schneider's Dwarf Caiman (Paleosuchus trigonatus) portrait, Amazon ecosystem, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha) calling from tree, Amazon ecosystem, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha) in tree, Amazon ecosystem, Brazil

Claus Meyer / White-faced Saki (Pithecia pithecia) portrait, Amazon ecosystem, Brazil

Claus Meyer / Straight-billed Hermit (Phaethornis bourcieri) hummingbird portrait, Amazon ecosystem, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha) sitting in tree, Amazon ecosystem, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea), Amazon, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea), Amazon, Brazil

Claus Meyer / Silvery Marmoset (Callithrix argentata) portrait, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatching, Amazon, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) pair on beach of Trombetas River where it lays eggs, Amazon, Brazil

Claus Meyer / Red-bellied Piranha (Pygocentrus nattereri) portrait, Amazon, Brazil

Claus Meyer / Aquatic Coral Snake (Micrurus surinamensis) on rock, Amazon forest, Brazil

Gerry Ellis / Ecotourism along the Amazon River, Amazon Basin, Brazil

Mark Moffett / Brazilian Tapir (Tapirus terrestris) portrait, an important disperser of fruit seeds in the Atlantic Forest ecosystem, Brazil

Claus Meyer / Spix's Mustached Tamarin (Saguinus mystax) portrait, Amazon ecosystem, Brazil

Claus Meyer / Red-backed Saki (Chiropotes satanas satanas) feeding on forest floor, Amazon, Brazil

Claus Meyer / Red-backed Saki (Chiropotes satanas satanas) calling, Amazon, Brazil

Claus Meyer / White-faced Saki (Pithecia pithecia) portrait, Amazon ecosystem, Brazil

Claus Meyer / White-faced Saki (Pithecia pithecia) clinging to tree trunk, Amazon ecosystem, Brazil

Claus Meyer / Dyeing Poison Frog (Dendrobates tinctorius) portrait, Amazon forest, Brazil

Claus Meyer / Racerunner Lizard (Plica sp) portrait, Amazon, Brazil

Claus Meyer / Turnip-tailed Gecko (Thecadactylus rapicauda) camouflaged against bark on tree, Amazon, Brazil

Claus Meyer / White Bald-headed Uacari (Cacajao calvus calvus) portrait, Amazon forest, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha), Amazon, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea) endangered, portrait, Amazon forest, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea) endangered, portrait, Amazon forest, Brazil

Claus Meyer / Black and White Tassel-ear Marmoset (Callithrix humeralifera) portrait, Atlantic Forest ecosystem, Brazil

Claus Meyer / Black and White Tassel-ear Marmoset (Callithrix humeralifera), Amazon forest, Brazil

Claus Meyer / Humboldt's Woolly Monkey (Lagothrix lagotricha), Amazon forest, Brazil

Claus Meyer / Tiger-striped Leaf Frog (Phyllomedusa tomopterna) or Barred Leaf Frog, portrait, Amazon ecosystem, Brazil

Claus Meyer / Toad (Atelopus sp) portrait on leaf litter, Amazon ecosystem, Brazil

Claus Meyer / Toad (Atelopus sp) portrait on leaf litter, Amazon ecosystem, Brazil

Claus Meyer / Margay (Leopardus wiedii) kitten hissing, Amazon ecosystem, Brazil

Claus Meyer / Jaguar (Panthera onca) in forest undergrowth, Amazon ecosystem, Brazil

Claus Meyer / White-faced Saki (Pithecia pithecia) pair, Amazon ecosystem, Brazil

Claus Meyer / Silvery Marmoset (Callithrix argentata) portrait, Amazon ecosystem, Brazil

Claus Meyer / Silvery Marmoset (Callithrix argentata) portrait, Amazon ecosystem, Brazil

Claus Meyer / Black Uakari (Cacajao melanocephalus) portrait, Amazon forest, Brazil

Claus Meyer / White-faced Saki (Pithecia pithecia) male portrait, Amazon forest, Brazil

Claus Meyer / Pygmy Marmoset (Cebuella pygmaea) endangered, portrait, Amazon, Brazil

Claus Meyer / Tarantula (Theraphosidae), portrait on rainforest floor, Amazon ecosystem, Brazil

Claus Meyer / Tourists viewing Amazon by river boat at sunset, Amazon ecosystem, Brazil

Claus Meyer / Ianomami child diving, Amazon ecosystem, Brazil

Claus Meyer / Many-colored Bush Anole (Polychrus marmoratus) portrait, Amazon ecosystem, Brazil

Claus Meyer / Jaguar (Panthera onca) running through green grass, Amazon ecosystem, Brazil

Claus Meyer / Silky Short-tailed Bat (Carollia brevicauda) hanging upside down, Amazon ecosystem, Brazil

Claus Meyer / South American River Turtle (Podocnemis expansa) hatchling floating in river, Amazon ecosystem, Brazil

Gerry Ellis / Rainforest slash and burn destruction, south Amazon Basin, Brazil

Gerry Ellis / Pale-throated Three-toed Sloth (Bradypus tridactylus) sleeping in tree, Amazon ecosystem, Brazil

Claus Meyer / Margay (Leopardus wiedii) kitten calling, Amazon, Brazil

Claus Meyer / Margay (Leopardus wiedii) kitten, Amazon, Brazil

Claus Meyer / White Bald-headed Uacari (Cacajao calvus calvus) portrait, Amazon forest, Brazil

Claus Meyer / Rainforest floor and interior in the Igapo region, Amazon ecosystem, Brazil

Claus Meyer / Tiger-striped Leaf Frog (Phyllomedusa tomopterna) or Barred Leaf Frog, portrait, Amazon ecosystem, Brazil

Claus Meyer / Toad (Bufo sp) portrait, Atlantic Forest ecosystem, Brazil

Claus Meyer / Leaf Litter Toad (Bufo typhonius) portrait, Amazon ecosystem, Brazil

Claus Meyer / Golden Parakeet (Aratinga guarouba) portrait, Amazon, Brazil