Kevin Schafer / Southern Cassowary (Casuarius casuarius) female, Queensland, Australia

Kevin Schafer / Golden Lion Tamarin (Leontopithecus rosalia) male with baby, Poco das Antas Reserve, Atlantic Forest, southeast Brazil

Luciano Candisani / Golden Lion Tamarin (Leontopithecus rosalia) portrait, Atlantic Forest, Brazil

Luciano Candisani / Black-browed Albatross (Thalassarche melanophrys) portrait, Steeple Jason Island, Falkland Islands

Luciano Candisani / Black-browed Albatross (Thalassarche melanophrys) flying, Steeple Jason Island, Falkland Islands

Luciano Candisani / King Penguin (Aptenodytes patagonicus) couple courting, Volunteer Point, East Falkland Island, Falkland Islands

Luciano Candisani / King Penguin (Aptenodytes patagonicus) group on beach, Volunteer Point, East Falkland Island, Falkland Islands

Luciano Candisani / Black-browed Albatross (Thalassarche melanophrys) chick begging parent for food, Saunders Island, Falkland Islands

Luciano Candisani / Troupial (Icterus icterus) perched in flowering tree, Cerrado Ecosystem, Brazil

Luciano Candisani / Waterfall, Formoso River, Bonito, Brazil

Luciano Candisani / Ghost Crab (Ocypode quadrata) on beach, Urucuca, Bahia, Brazil

Luciano Candisani / Ghost Crab (Ocypode quadrata) on beach, Urucuca, Bahia, Brazil

Thomas Marent / Harlequin Poison Dart Frog (Dendrobates histrionicus) on bromeliad, Cauca, Colombia

Thomas Marent / Golden Poison Dart Frog (Phyllobates terribilis) pair mating, Cauca, Colombia

Thomas Marent / Crimson-patched Longwing (Heliconius erato) butterfly, Colombia

Thomas Marent / Mountain Gorilla (Gorilla gorilla beringei) silverback, Volcanoes National Park, Rwanda

Thomas Marent / Huay Mae Khamin Waterfall, Kheaun Sri Nakarin National Park, Thailand

Thomas Marent / Banded Anole (Anolis insignis) displaying dewlap in cloud forest, Costa Rica

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

Thomas Marent / Banana Spider (Nephila clavipes) female and smaller male, Bocas del Toro, Panama

Thomas Marent / Greater Flamingo (Phoenicopterus ruber) group flying, Rio Lagartos, Yucatan, Mexico

Thomas Marent / Greater Flamingo (Phoenicopterus ruber) group flying, Rio Lagartos, Yucatan, Mexico

Thomas Marent / Black-handed Spider Monkey (Ateles geoffroyi) using prehensile tail, Belize

Thomas Marent / Alpine Ibex (Capra ibex) males, Switzerland

Thomas Marent / African Savannah Mantid (Polyspilota aeruginosa) in defensive posture, Mantadia National Park, Madagascar

Thomas Marent / Andean Cock-of-the-rock (Rupicola peruvianus) male, Manu National Park, Peru

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

Thomas Marent / Cascades of the Iguacu Falls, the world's largest waterfalls, Iguacu National Park, Argentina

Thomas Marent / Orchid Mantis (Hymenopus coronatus) camouflaged on flower, Borneo, Malaysia

Thomas Marent / Eclectus Parrot (Eclectus roratus) male calling, Daintree National Park, Australia

Thomas Marent / Creek flowing through temperate rainforest, Fjordland National Park, New Zealand

Thomas Marent / Eclectus Parrot (Eclectus roratus) male, Papua New Guinea

Thomas Marent / Glasswing Butterfly (Ithomania sp) pair, Tingomaria, Peru

Thomas Marent / Glasswing Butterfly (Ithomania sp), Tingomaria, Peru

Thomas Marent / Two Sisters Waterfalls, Iguacu Falls National Park, Brazil

Thomas Marent / Peacock Butterfly (Inachis io) on flowers, Switzerland

Thomas Marent / Silver-washed Fritillary (Argynnis paphia) butterfly, Switzerland

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

Thomas Marent / Red Stink Bug (Pycanum rubeus) nymph, Sepilok, Borneo, Malaysia

Thomas Marent / Common Sundew (Drosera rotundifolia), Switzerland

Thomas Marent / Alpine Ibex (Capra ibex) male, Switzerland

Thomas Marent / Edible Frog (Rana esculenta) group on log in pond, Switzerland

Suzi Eszterhas / Saruni Lodge, Kalama Wildlife Conservancy, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) pups outside of den, Masai Mara, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) parent and pup, Masai Mara, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) parent with five day old pups at den entrance, Masai Mara National Reserve, Kenya

Suzi Eszterhas / Bat-eared Fox (Otocyon megalotis) portrait, Masai Mara National Reserve, Kenya