Tui De Roy / Olive Ridley Sea Turtle (Lepidochelys olivacea), Oaxaca, Mexico

Theo Allofs / Little Bee-eater (Merops pusillus) group, Moremi Game Reserve, Okavango Delta, Botswana

Theo Allofs / Grey Heron (Ardea cinerea) taking flight with fish prey, Pantanal, Brazil

Theo Allofs / Giant River Otter (Pteronura brasiliensis) swimming, Pantanal, Brazil

Theo Allofs / Jaguar (Panthera onca), Pantanal, Brazil

Theo Allofs / Giant River Otter (Pteronura brasiliensis) feeding on fish prey, Pantanal, Brazil

Richard Du Toit / African Elephant (Loxodonta africana) calves with adult at waterhole, Addo National Park, South Africa. Sequence 3 of 4

Suzi Eszterhas / Meerkat (Suricata suricatta) on alert with three-week-old pups, Makgadikgadi Pans, Botswana

Suzi Eszterhas / Meerkat (Suricata suricatta) two-week-old pups, Makgadikgadi Pans, Botswana

Suzi Eszterhas / Meerkat (Suricata suricatta) two-week-old pups, Makgadikgadi Pans, Botswana

Chase Dekker / Humpback Whale (Megaptera novaeangliae) breaching, Monterey Bay, California

Luciano Candisani / Jacare Caiman (Caiman yacare) with fish school, Pantanal, Brazil

Luciano Candisani / Brown-throated Three-toed Sloth (Bradypus variegatus) in atlantic Rainforest, Brazil

Benjamin Olson / Brown Bear (Ursus arctos) male foraging for salmon, Katmai National Park, Alaska

Mark Raycroft / Caribou (Rangifer tarandus) male, female, and calf, North America

Mark Raycroft / Chocolate Labrador Retriever (Canis familiaris) puppy, North America

Suzi Eszterhas / Hoffmann's Two-toed Sloth (Choloepus hoffmanni) mother and young, Puerto Viejo de Talamanca, Costa Rica

Suzi Eszterhas / Brown-throated Three-toed Sloth (Bradypus variegatus) mother with four-month-old young, Puerto Viejo de Talamanca, Costa Rica

Suzi Eszterhas / Brown-throated Three-toed Sloth (Bradypus variegatus) four-month-old young, Puerto Viejo de Talamanca, Costa Rica

Ch'ien Lee / Huntsman Spider (Heteropoda sp) defending egg sac from Peters' Bow-fingered Gecko (Cyrtodactylus consobrinus), Gua Baju, Sarawak, Borneo, Malaysia

Ch'ien Lee / Australasian Giant Centipede (Ethmostigmus rubripes) recently molted juvenile, Sarawak, Borneo, Malaysia

Jami Tarris / Jaguar (Panthera onca) cub, Pantanal, Brazil

Jami Tarris / Mountain Gorilla (Gorilla gorilla beringei) mother and juvenile, Bwindi Impenetrable National Park, Uganda

Tim Fitzharris / Joshua Tree (Yucca brevifolia) group and boulders, Joshua Tree National Park, California

Tim Fitzharris / Saguaro (Carnegiea gigantea) cactus, Neale Mesa and Aquarius Mountains, Arizona

Tim Fitzharris / Forest and mountains in autumn, San Juan Mountains, Colorado

Chase Dekker / Common Dolphin (Delphinus delphis) surfacing, California

Chase Dekker / Orca (Orcinus orca) male surfacing, Monterey Bay, California

Roland Seitre / Naked Mole Rat (Heterocephalus glaber), native to Africa

Roland Seitre / Darling's Mole-rat (Cryptomys darlingi) incisors, native to Africa

Roland Seitre / Darling's Mole-rat (Cryptomys darlingi), native to Africa

Roland Seitre / Darling's Mole-rat (Cryptomys darlingi), native to Africa

Roland Seitre / Angolan Giant Mole-rat (Cryptomys mechowi), native to Africa

Roland Seitre / Angolan Giant Mole-rat (Cryptomys mechowi), native to Africa

Roland Seitre / Angolan Giant Mole-rat (Cryptomys mechowi), native to Africa

Roland Seitre / Lesser Egyptian Jerboa (Jaculus jaculus), native to Africa

Roland Seitre / Merriam's Kangaroo Rat (Dipodomys merriami), native to North America

Roland Seitre / Cloven-feathered Dove (Drepanoptila holosericea), native to New Caledonia

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus), Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Galapagos Sea Lion (Zalophus wollebaeki) surfing wave, Plazas Island, Galapagos Islands, Ecuador

ZSSD / Sumatran Tiger (Panthera tigris sumatrae) female, captive

ZSSD / Amur Leopard (Panthera pardus orientalis) melanistic female, captive

ZSSD / Polar Bear (Ursus maritimus) in snow, captive

Konrad Wothe / Mountains at night with star trails, Kampenwand Mountain, Alps, Upper Bavaria, Germany

Konrad Wothe / Firefly (Lamprohiza splendidula) males flying in forest, Bavaria, Germany

Konrad Wothe / Firefly (Lamprohiza splendidula) males flying in forest, Bavaria, Germany

Roland Seitre / Bottlenose Dolphin (Tursiops truncatus) pair jumping, France

Juergen & Christine Sohns / Grape (Vitis vinifera) fruit for Cabernet Sauvignon wine, Rhineland-Palatinate, Germany