Lucas Bustamante / Monarch butterflies (Danaus plexippus) flying during a warm morning. When the overwintering period draws to an end large numbers become active. Michoacan, Mexico, February.

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 / Sri Lankan leopard (Panthera pardus kotiya) rolling on its back, Yala National Park, Sri Lanka

Lucas Bustamante / Sri Lankan elephant (Elephas maximus maximus) walking past tourist jeep with tourists, Yala National Park, Southern Province, Sri Lanka

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

Lucas Bustamante / Aerial view of cut tree trunks in deforested Ecuadorian Choco, Esmeraldas, Ecuador. 25 tree species, many of them threatened, are involved.

Lucas Bustamante / Palm oil crops and deforestation in the Ecuadorian Choco, Esmeraldas, Ecuador

Lucas Bustamante / Black river water creek in the Amazon Basin. Yasuni National Park, Orellana, Ecuador

Lucas Bustamante / Water Buffalo (Bubalus bubalis) Yala National Park, Southern Province, Sri Lanka

Lucas Bustamante / Palm oil crops and deforestation in the Ecuadorian Choco Esmeraldas, Ecuador

Lucas Bustamante / Toque Macaques (Macaca sinica) Polonnaruwa, Central Province, Sri Lanka

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

Lucas Bustamante / Golden-Tailed Sapphire (Chrysuronia oenone) Sumaco National Park, Napo, Ecuador

Lucas Bustamante / Lesser Clownfrogs (Dendropsophus parviceps) with their eggs. Sumaco National Park, Napo, Ecuador

Lucas Bustamante / Lichen Katydid (Markia hystrix) camouflage in lichens. Sumaco National Park, Napo, Ecuador

Lucas Bustamante / Tropical shield mantis (Choeradodis sp.) Sumaco National Park, Napo, Ecuador

Lucas Bustamante / Amazonian millipede with parasites. Sumaco National Park, Napo, Ecuador

Lucas Bustamante / Treehopper (Alchisme onorei) with eggs Papallacta, Napo, Ecuador

Lucas Bustamante / Green-crowned woodnymph (Thalaurania fannyi) Mashpi, Pichincha, Ecuador

Lucas Bustamante / Choco Toucan (Ramphastos brevis) on a tree with epiphytes, Mashpi, Pichincha, Ecuador

Lucas Bustamante / Sierra Negra giant tortoise (Chelonoidis guntheri) Isabela Island, Galapagos Islands.

Lucas Bustamante / Sword-billed hummingbird (Ensifera ensifera) Yanacocha, Pichincha, Ecuador

Lucas Bustamante / Marine Iguanas (Amblyrhynchus cristatus) basking. Fernandina Island, Galapagos Islands.

Lucas Bustamante / Labiated rainfrog (Pristimantis labiosus) feeding on spider prey, Mashpi, Pichincha, Ecuador

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

Lucas Bustamante / Mosquito (Culicidae) feeding on the back of an Equatorial anole (Anolis aequatorialis) Mindo, Pichincha, Ecuador.

Lucas Bustamante / Tropical shield mantis (Choeradodis rhombicollis) in defensive position, on flower, Chinambi, Carchi, Ecuador.

Lucas Bustamante / Two Limon glass frogs (Sachatamia ilex) sitting on plant, one above the other, Canande, Esmeraldas.

Lucas Bustamante / Pinocchio lizard (Anolis proboscis) male on stem, Mindo, Pichincha, Ecuador, Endangered species.

Lucas Bustamante / Imbabura tree frog (Hypsiboas picturatus) portrait, Canande, Esmeraldas, Ecuador.

Lucas Bustamante / Rio pescado harlequin toad (Atelopus balios) pair on branch, female on the left, Azuay, Ecuador, Critically endangered species, possibly extinct.

Lucas Bustamante / Troschel's tree frog / Calcar tree / Convict tree frog (Hypsiboas calcaratus) portrait, on leaf, Cuyabeno, Sucumbios, Ecuador.

Lucas Bustamante / Female African lion (Panthera leo) face portrait, Etosha National Park, Harare Province, Namibia.

Lucas Bustamante / Moss rainfrog (Pristimantis eriphus) siting on leaf, Cosango, Napo Ecuador, Vulnerable species.

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

Lucas Bustamante / Brown throated three toed sloth (Bradypus variegatus) hanging from branch, Yasuni National Park, Orellana, Ecuador.

Lucas Bustamante / Four Galapagos sea lions (Zalophus wollebaeki) sleeping on beach, Floreana Island, Galapagos, Endangered species.

Lucas Bustamante / African lion (Panthera leo) resting, Etosha National Park, Harare Province, Namibia.

Lucas Bustamante / Red tailed boa constrictor (Boa constrictor constrictor) juvenile, portrait, with tail wrapped round head, Cuayabeno, Sucumbios, Ecuador.

Lucas Bustamante / Tropical shield mantis (Choeradodis sp.) (Possibly C. rhombicollis) Canande, Esmeraldas, Ecuador.

Lucas Bustamante / Coastal glassfrog (Cochranella litoralis) on leaf with eggs. San Lorenzo, Esmeraldas, Ecuador.

Lucas Bustamante / Anthony's poison-frog (Epipedobates anthonyi) seen through hole in leaf. Buenaventura Reserve, El Oro, Ecuador.

Lucas Bustamante / Sarayacu clownfrog (Dendropsophus sarayacuensis) with its clutch of eggs developing and starting to drop off from a leaf into the water below, where the tadpoles will develop. Sumaco National Park, N...

Lucas Bustamante / Scarlet macaws (Ara macao) and Red and green macaws (Ara chloroptera) at clay lick close to the Tambopata river. Tambopata Reserve, Madre de Dios, Peru.

Lucas Bustamante / Humpback whale (Megaptera novaeangliae) fluke above the water as it dives, Machalilla National Park, Manabi, Ecuador.

Steven Kazlowski / Curious subadult Polar bear (Ursus maritimus) tagged 300-400 lb. along the Arctic coast during the autumn freeze up, 1002 area of the Arctic National Wildlife Refuge, Beaufort Sea, Alaska, October 200...

Lucas Bustamante / Photographer Lucas Bustamante with anaconda 2014