Roland Seitre / Silver Jewel Scarab Beetle (Chrysina optima) on red petals. Poas Volcano National Park, Caribbean Coast, Vara Branca, Costa Rica.

Roland Seitre / Central American Agouti (Dasyprocta punctata) mother resting with young. La Marina Wildlife Rescue Center, Costa Rica.

Roland Seitre / Central American Scarlet Macaw (Ara macao cyanoptera) feeding on flowers. La Marina Wildlife Rescue Center, Costa Rica.

Roland Seitre / Baby Rothschild's Porcupine (Coendou rothschildi) on the palm of conservation volunteer. La Marinas Wildlife Rescue Centre, Costa Rica, 2008.

Roland Seitre / Baby Rothschild's Porcupine (Coendou rothschildi) being bottle-fed. La Marinas Wildlife Rescue Centre, Costa Rica, 2008.

Roland Seitre / Hoffman's Two Toed Sloth (Choloepus hoffmanni) being weighed and recorded. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Volunteer holding Hoffman's Two Toed Sloth (Choloepus hoffmanni) Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Hoffmann's Two Toed Sloth (Choloepus hoffmanni) baby wrapped in cloth. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Brown-throated Three Toed Sloth (Bradypus variegatus) and Hoffmann's Two Toed Sloths (Choloepus hoffmanni) babies being fed. Aviarios del Caribe Sloth Refuge, Costa Rica, 2008.

Roland Seitre / Brown-throated Three Toed Sloth (Bradypus variegatus) and Hoffmann's Two Toed Sloths (Choloepus hoffmanni) babies held by orphanage owner, Judy Avey-Arroyo. Aviarios del Caribe Sloth Refuge, Costa Ric...

Roland Seitre / American Crocodile (Crocodylus acutus) seen on 'The Crocodile Man Tour'. Carara National Park, Tarcoles, Costa Rica, August 2008.

John Cancalosi / Boa Constrictor (Boa constrictor) shedding skin from head. Guanacaste National Park, Costa Rican tropical rainforest.

John Cancalosi / Cattle Egret (Bubulcus ibis) standing with nesting material. Costa Rican tropical rainforest.

John Cancalosi / Boa Constrictor (Boa constrictor) shedding skin from head. Guanacaste National Park, Costa Rican tropical rainforest.

Piotr Naskrecki / Cicada (Cicadidae), Barbilla National Park, Costa Rica

Solvin Zankl / An Olive ridley sea turtle hatchling (Lepidochelys olivacea) on its way to the sea. The hatchlings orientate themselves by the brightness of the horizon above the ocean, Ostional NP, Costa Rica. Octob...

Martin Gabriel / Woody / Monkey ladder vine (Bauhinia glabra) Palo Verde National Park, Costa Rica

Martin Gabriel / Woody / Monkey ladder vine (Bauhinia glabra) Palo Verde National Park, Costa Rica

Martin Gabriel / Green parrot snake (Leptophis ahaetulla) defensive attack, Tenorio National Park, Costa Rica

Tim Laman / Red-eyed tree frog (Agalychnis callidryas). Piedras Blancas National Park, Esquinas Rainforest Lodge, Costa Rica.

Kevin Schafer / Leatherback Sea Turtle (Dermochelys coriacea) female laying eggs, Las Baulas National Park, Costa Rica

Thomas Marent / Eyelash Viper (Bothriechis schlegelii) with yellow coloration, coiled on branch, Cahuita National Park, Costa Rica

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas), Cahuita National Park, Costa Rica

Jouan & Rius / View of river from boat, Tortuguero NP, Costa Rica

Jouan & Rius / Waterfall during the rainy season, Rincon de la Vieja NP, Costa Rica

Jouan & Rius / Waterfall during the rainy season, Rincon de la Vieja NP, Costa Rica

Jouan & Rius / Epiphytes growing on trunk in a cloud forest, Santa Elena Nature Reserve, Costa Rica

Jouan & Rius / Buttress roots of giant tree in rainforest, Tortuguero NP, Costa Rica

Jouan & Rius / Misty morning in the tropical forest, Rincon de la Vieja NP, Costa Rica

Jouan & Rius / Low angle shot looking up through canopy showing crown shyness / gaps between trees , Tortuguero NP, Costa Rica

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia (Heliconia sp) flower, Cahuita National Park, Costa Rica

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) on Heliconia (Heliconia sp) flower, Cahuita National Park, Costa Rica

Konrad Wothe / Honduran White Bat (Ectophylla alba) roosting under Heliconia (Heliconia sp) leaf, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Mountain rainforest, Braulio Carrillo National Park, Costa Rica

Ingo Arndt / Black-handed Spider Monkey (Ateles geoffroyi) hanging by its prehensil tail in forest canopy, Santa Rosa National Park, Costa Rica

Piotr Naskrecki / Ogre-faced Spider (Deinopis sp) do not wait passively for an insect to fall into their web, instead, they cast sticky nets, La Selva Biological Station, Costa Rica

LYNN M. STONE / Tropical rainforest habitat, Braulio Carrillo National Park, Costa Rica

Doug Wechsler / Giant toad showing paratoid gland behind eye {Bufo marinus} Costa Rica Guanacaste NP,

Doug Wechsler / Biologist releases Olive Ridley turtle hatchlings from study nest, Santa Rosa NP Costa Rica

Mark Moffett / Granular Poison Dart Frog (Dendrobates granuliferus) portrait on bird's nest fungus, Corcovado National Park, Costa Rica

Martin Dohrn / Army ant bivouac made entirely from body mass of migrating ants {Eciton burchelli} Santa Rosa NP, Guanacaste, Costa Rica, Central America

Michael & Patricia Fogden / White-necked Jacobin (Florisuga mellivora) hummingbird male feeding on nectar from a Bromeliad flower, La Selva Biological Research Station, Rainforest, Costa Rica

Michael & Patricia Fogden / Perfumed Passion Flower (Passiflora vitifolia) flowers and fruit, rainforest, Corcovado National Park, Costa Rica

Michael & Patricia Fogden / Lianas in interior of lowland rainforest, La Selva Biological Research Station, Costa Rica

Gerry Ellis / Crown of emergent rainforest tree covered in epiphytes in montane tropical rainforest, Braulio Carrillo National Park, Costa Rica

Gerry Ellis / White-faced Capuchin (Cebus capucinus) monkey calling, Corcovado National Park, Costa Rica

Gerry Ellis / White-faced Capuchin (Cebus capucinus) monkey, Corcovado National Park, Costa Rica

Mark Moffett / Rainforest researcher Pierre Berner studies tree growth, Rio Macho Forest Reserve, Costa Rica

Mark Moffett / Rainforest researcher Pierre Berner studies tree growth, Rio Macho Forest Reserve, Costa Rica

Doug Wechsler / Giant (Marine) toad, Guanacaste NP, Costa Rica

LYNN M. STONE / Tropical rainforest. Braulio Carillo NP, Costa Rica, Central America

LYNN M. STONE / Tropical rainforest. Braulio Carillo NP, Costa Rica, Central America

John Cancalosi / Neotropical bird eating snake (Pseustes poecilonotus) Guanacaste National park, Costa Rica

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 6 of 6

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 5 of 6

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 4 of 6

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 3 of 6

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 2 of 6

John Cancalosi / Black tailed spiny iguana ( Ctenosaura similis) swallowing crab, Murcielago Island, Santa Rosa National Park, Costa Rica. Sequence 1 of 6

Christian Ziegler / Misfit Leaf Frog (Agalychnis saltator) mass mating, La Selva Biological Research Station, Costa Rica

Christian Ziegler / Red-eyed Tree Frog (Agalychnis callidryas) seen from below, La Selva Biological Research Station, Costa Rica

Christian Ziegler / Misfit Leaf Frog (Agalychnis saltator) pair mating in foreground, La Selva Biological Research Station, Costa Rica

Thomas Marent / Green Climbing Toad (Bufo coniferus), Piedras Blancas National Park, Costa Rica

Konrad Wothe / Passerini's / Scarlet rumped Tanager (Ramphocelus passerinii) female, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Cane toad (Bufo marinus), lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Bug larvae, unknown species, in lowland rainforest of Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Honduran white tent bats (Ectophylla alba) sleeping under Heliconia leaf, Braulio Carillo National Park, Costa Rica

Konrad Wothe / Honduran white tent bats (Ectophylla alba) sleeping under Heliconia leaf, Braulio Carillo National Park, Costa Rica

Konrad Wothe / Common iguana (Iguana iguana) in lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Common iguana (Iguana iguana) in lowland rainforest in tree, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Great Curassow (Crax rubra) male on forest floor, Braulio Carrillio National Park, Costa Rica

Konrad Wothe / Great Curassow (Crax rubra) male in tree, Braulio Carrillio National Park, Costa Rica

Konrad Wothe / Fruit eating bats (Artibeus watsonii) resting under Heliconia leaf, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Gould's Euphonia (Euphonia gouldi) male in lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Moss covered tree trunk in rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Camouflaged cricket in lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Millipede, unknown species, in the lowland rainforest of Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Lowland Rainforest habitat in Braulio Carrillo National Park, Costa Rica, 2007

Konrad Wothe / Grey necked Wood rail (Aramides cajanea cajanea) Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Woolly Opossum (Caluromys derbianus) in lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Common Basilisk (Basiliscus basiliscus) in lowland rainforest, Braulio Carrillo National Park, Costa Rica

Konrad Wothe / Looking down into Poas Volcano crater, Poas National Park, Costa Rica, 2007

Konrad Wothe / Laguna Botos crater lake, Poas National Park, Costa Rica, 2007

Konrad Wothe / Gunnera (Gunnera insignis) in mountain rainforest of Tapanti National Park, Costa Rica

Thomas Marent / Strawberry Poison Dart Frog (Oophaga pumilio) on mushroom, Tortuguero National Park, Costa Rica

Thomas Marent / Rosenberg's Gladiator Tree Frog (Hypsiboas rosenbergi), Piedras Blancas National Park, Costa Rica

Thomas Marent / Tarraco Treefrog (Smilisca phaeota) trio in amplexus, Piedras Blancas National Park, Costa Rica

Thomas Marent / Red-eyed Tree Frog (Agalychnis callidryas) with half closed eyelid, Tortuguero National Park, Costa Rica

Thomas Marent / Tarraco Treefrog (Smilisca phaeota) on mushroom, Piedras Blancas National Park, Costa Rica

Thomas Marent / Green Climbing Toad (Bufo coniferus) camouflaged on branch, Piedras Blancas National Park, Costa Rica

Roland Seitre / Pantropical Spotted Dolphins (Stenella attenuata) under sea surface. Ballena National Marine Park, Costa Rica.

Roland Seitre / Pantropical Spotted Dolphin (Stenella attenuata) beneath sea surface. Ballena National Marine Park, Costa Rica.

Roland Seitre / Pantropical Spotted Dolphin (Stenella attenuata) breaching and spyhopping. Ballena National Marine Park, Costa Rica.

Roland Seitre / Emerald Toucanet (Aulacorhynchus prasinus). Poas Volcano National Park, Carribean Coast, Costa Rica.

Roland Seitre / Baird's Tapir (Tapirus bairdii) resting. Captive. La Marina Wildlife Rescue Center, Costa Rica.

Roland Seitre / Baird's Tapirs (Tapirus bairdii) resting. Captive. La Marina Wildlife Rescue Center, Costa Rica.