860-293554 - Andean Cock-of-the-rock (Rupicola peruvianus) on a branch, Jardin, Colombia

860-293508 - Sumatran orangutan (Pongo abelii), dominant male, Gunung Leuser, Sumatra, Indonesia

860-293528 - Bornean Proboscis Monkey (Nasalis larvatus) sitting against a trunk, Labuk Bay Proboscis Monkey Sanctuary, Sabah, Borneo, Malaysia.

860-293506 - Sumatran orangutan (Pongo abelii), 5 years old picking leaves, Gunung Leuser, Sumatra, Indonesia

860-293512 - Bornean orangutan (Pongo pygmaeus), portrait of a dominant male, Taman Negara, Borneo, Indonesia

860-293507 - Sumatran orangutan (Pongo abelii), dominant male, Gunung Leuser, Sumatra, Indonesia

860-293513 - Bornean orangutan (Pongo pygmaeus), hand detail on a tree, Taman Negara, Borneo, Indonesia

860-293505 - Sumatran orangutan (Pongo abelii), 5 years old picking leaves, Gunung Leuser, Sumatra, Indonesia

860-293511 - Bornean orangutan (Pongo pygmaeus), portrait of a dominant male, Taman Negara, Borneo, Indonesia

860-293504 - Sumatran orangutan (Pongo abelii), female, Gunung Leuser, Sumatra, Indonesia

860-293510 - Bornean orangutan (Pongo pygmaeus), baby on his mother back, Taman Negara, Borneo, Indonesia

860-293509 - Bornean orangutan (Pongo pygmaeus), baby on his mother back, Taman Negara, Borneo, Indonesia

860-293478 - Portrait of Young Bonobo (Pan Paniscus), DRC

860-293475 - Rainette-feuille (Phyllomedusa lemur) sur une feuille, Costa Rica

860-293474 - Dyeing poison frog (Dendrobates tictorius), on a leaf, Peru

860-293473 - Strawberry poison frog (Oophaga pumilio) on a leaf, Panama

860-293464 - Three-striped poison frog (Ameerega trivittata), Amazon, Peru

860-293460 - White-handed gibbon (USA, South Carolina, International Primate Protection, Summerville)

860-293457 - Portrait of Orang-utang (Pongo pygmaeus) male, Georgia, USA

860-293456 - Sumatran orangutan in a night nest (Indonesia, Sumatra, Gunung Leuser National Park)

860-293451 - Western lowland gorilla (Gorilla gorilla gorilla), Miami, Florida, USA

860-293448 - White handed gibbon (Hylobates lar), Florida, USA

860-293447 - White handed gibbon (Hylobates lar), Florida, USA

860-293446 - Ring tailed lemur (Lemur catta), Florida

860-293443 - Dyeing poison frog (Dendrobates tinctorius), Suriname

860-293442 - Red-eyed tree frog (Agalychnis callidryas), Costa Rica

860-293441 - Red-eyed tree frog (Agalychnis callidryas), Costa Rica

860-293439 - Bumble-bee poison frog (Venezuela)

860-293440 - Blue poison frog (Dendrobates azureus), Suriname

860-293165 - Howler monkey (Alouatta macconnelli) with its young on its back in the branches of a Cecropia tree, Regina, Camp Patawa, French Guiana

860-293164 - Howler monkey (Alouatta macconnelli) in the branches of a cecropia tree, Camp Patawa, French Guiana

860-292963 - Ghost Frog;Sachatamia ilex) on a leaf, Costa Rica

860-292962 - Super-leg monkey tree frog;Phyllomedusa tomopterna) La Paz Natural Park, Costa Rica

860-292961 - La Palma glass frog;Hyalinobatrachium valerioi) Adult with egg laying on a leaf, Costa Rica

860-292960 - Ghost Frog;Hyalinobatrachium chirripoi) mating, Costa Rica

860-292959 - Green and Black Poison Frog;Dendrobates auratus), highly toxic diurnal amphibian, leaf-climber, Costa Rica

860-292958 - Orange-legged treefrog;Cruziohyla sylviae) on a branch, Costa Rica

860-292957 - Red-eyed treefrog;Agalychnis callidryas) mating, Costa Rica

860-292956 - Red-eyed treefrog;Agalychnis callidryas), Costa Rica

860-292955 - Red-eyed treefrog;Agalychnis callidryas), Costa Rica

860-292837 - American crocodile;Crocodylus acutus) in the water, Tarcoles, Costa Rica.

860-292833 - Panamian White-faced Capuchin;Cebus imitator) on a branch, Jaco, Costa Rica.

860-292831 - Brown-throated sloth;Bradypus variegatus), Jaco, Costa Rica

860-292712 - Blue-throated Toucanet (Aulacorhynchus caeruleogularis) adult female perched observing, Costa Rica

860-292713 - Schlegel's viper (Bothriechis schlegelii) venomous nocturnal adult curled up at rest on a branch, Costa Rica

860-292711 - Keel-billed Toucan (Ramphastos sulfuratus) adult close-up in dark forest, Costa Rica

860-292709 - Lineated Woodpecker (Dryocopus lineatus) adult female looking for larvae on a trunk against a blue sky, Costa Rica

860-292710 - Mantled howler (Alouatta palliata) adult male howling on his territory, Pacific coast, Costa Rica

860-292708 - Violet Sabrewing (Campylopterus hemileucurus) adult male on a branch, Costa Rica

860-292707 - Roadside Hawk (Rupornis magnirostris) adult on a branch observing its territory, Costa Rica

860-292690 - Great hornbill (Buceros bicornis) swallowing a fig, Khao Yai national Park, Thailand

860-292294 - Proboscis monkey or long-nosed monkey (Nasalis larvatus), Young male in a tree, Reserve of Labuk Bay, Sabah, Malaysia, North Borneo, Southeast Asia

860-292293 - Proboscis monkey or long-nosed monkey (Nasalis larvatus), female and young in a tree, Reserve of Labuk Bay, Sabah, Malaysia, North Borneo, Southeast Asia

860-292292 - Bornean Sun Bear (Helarctos malayanus) at rest on a branch, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292291 - Bornean Sun Bear (Helarctos malayanus) at rest on a branch, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292289 - Bornean Sun Bear (Helarctos malayanus) climbing in a tree, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292288 - Bornean Sun Bear (Helarctos malayanus) climbing in a tree, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292286 - Bornean Sun Bear (Helarctos malayanus), Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292285 - Bornean Sun Bear (Helarctos malayanus) climbing in a tree, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292284 - Bornean Sun Bear (Helarctos malayanus) climbing in a tree, Borneo Malay Bear Center, Rescue and Rehabilitation Center, Sepilok Rehabilitation Center, Sabah, Malaysia, North Borneo, Southeast Asia

860-292216 - Gursky's spectral tarsier Tarsius spectrumgurskyae (sp. nov. M. Shekelle and al.) North Sulawesi

860-292184 - Sword-billed Hummingbird (Ensifera ensifera), female, confronting a Buff-tailed Coronot (Boissonneaua flavescens), Colombia

860-291890 - Takamaka Valley, Saint Benoit, Reunion Island, France

860-291889 - Takamaka Valley, Saint Benoit, Reunion Island, France

860-291888 - Takamaka Valley, Saint Benoit, Reunion Island, France

860-291668 - Lined leaf-tailed gecko (Uroplatus lineatus)

860-291579 - Western lowland gorilla (Gorilla gorilla gorilla) in tree. Odzala-Kokoua National Park. Cuvette-Ouest Region. Republic of the Congo

860-291578 - Western lowland gorilla (Gorilla gorilla gorilla) silverback with 2 youngsters in Marantaceae forest. Odzala-Kokoua National Park. Cuvette-Ouest Region. Republic of the Congo

860-291576 - Western lowland gorilla (Gorilla gorilla gorilla) in Marantaceae forest. Odzala-Kokoua National Park. Cuvette-Ouest Region. Republic of the Congo

860-291577 - Western lowland gorilla (Gorilla gorilla gorilla) in Marantaceae forest. Odzala-Kokoua National Park. Cuvette-Ouest Region. Republic of the Congo

860-291468 - The incredibly beautiful Iguazu Falls on the border between Brazil and Argentina.

860-291467 - The incredibly beautiful Iguazu Falls on the border between Brazil and Argentina.

860-291442 - Researcher photographing a 2.6 gram Stripe-throated Hermit hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291441 - Researcher measuring a 2.6 gram Stripe-throated Hermit hummingbird wing as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291439 - Researcher measuring the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291440 - Researchers picking up pollen with a brush from the beak of a hummingbird Stripe-throated Hermit as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291438 - Researchers picking up pollen with a brush from the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui , Costa Rica

860-291436 - Researcher catching Rufous-tailed Hummingbird (Amazilia Tzacatl) in a net set up for pollination study, rainforest at "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291437 - Researchers picking up pollen using tape on the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291434 - Researcher setting up a net to capture hummingbirds as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291435 - Rufous-tailed Hummingbird (Amazilia tzacatl) in a net set up by a researcher as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291433 - Fringe-lipped Bat (Trachops cirrhosus) in the hand of a scientist as part of a pollination study, tropical forest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291432 - Bat caught in a net as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291430 - Researchers applying a mascara brush to the hairs of a Sowell's short-tailed bat (Carollia sowelli) to test methods to capture pollen that bats may carry as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291431 - Researcher unhooking a bat caught in a net as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291427 - Researchers applying tape to the hairs of a bat to test methods to capture the pollen it carries as part of a pollination study, rainforest at the 'La Selva' research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291428 - Researchers applying a mascara brush to the hairs of a Sowell's short-tailed bat (Carollia sowelli) to test methods to capture pollen that bats may carry as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291426 - Sowell's short-tailed bat (Carollia sowelli) caught as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291424 - Net for catching bats as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291425 - Sowell's short-tailed bat (Carollia sowelli) caught as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291423 - Installation of a sign on a hiking trail indicating the presence of nets to capture bats as part of a pollination study, rainforest of the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Ricardo

860-291421 - 27-year-old female researcher working on nitrogen exchange between bacteria and the roots of legumes showing an example of a nodule of bacteria attached to the roots in the rainforest of the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291422 - Earth diluted with water in order to extract the PH from the soil as part of a study on nitrogen exchanges between bacteria and the roots of legumes in the tropical forest of the "La Selva" research station in Puerto Viejo from Sarapiqui, Costa Rica

860-291420 - Earth diluted with water in order to extract the PH from the soil as part of a study on nitrogen exchanges between bacteria and the roots of legumes in the tropical forest of the "La Selva" research station in Puerto Viejo from Sarapiqui, Costa Rica

860-291418 - 27-year-old researcher and her team working on nitrogen exchange between bacteria and the roots of legumes in the rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291419 - 27-year-old researcher working in a lab on nitrogen exchange between bacteria and the roots of legumes in the rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291417 - Research assistant working on nitrogen exchanges between bacteria and the roots of legumes in the tropical forest of the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291415 - 27-year-old researcher working on nitrogen exchange between bacteria and the roots of legumes in the rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291416 - 27-year-old researcher working on nitrogen exchange between bacteria and the roots of legumes in the rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

860-291414 - 29-year-old assistant researcher working on nitrogen exchange between bacteria and the roots of legumes in the rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica