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A predatory stonefish (Synanceia verrucosa) lies camouflaged in the sandy seafloor of Komodo National Park, Indonesia. This is the most venomous fish on Earth but uses its venom only for defensive purposes.

A blue starfish on a beautiful coral reef in the shallows of Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

Colorful chocolate chip starfish lie scattered on the floor of a seagrass meadow in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A hawksbill sea turtle, Eretmochelys imbricata, lays on a beautiful reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A colorful nudibranch, Hypselodoris tryoni, crawls across a sandy sea floor in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.

A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.

A colorful ornate ghost pipefish, Solenostomus paradoxus, hovers over a coral reef in Komodo National Park, Indonesia.

Detail of a reef-building coral colony growing on a healthy reef in Komodo National Park, Indonesia.

Alerted springboks (Antidorcas marsupialis) watching a lioness (Panthera leo) walking, Nxai Pan National Park, Botswana, Africa

Giraffes (Giraffa camelopardalis) at sunset at a waterhole, Nxai Pan National Park, Botswana, Africa

Yellow-billed stork (Mycteria ibis) carrying nesting material, Chobe National Park, Botswana, Africa

Brown capuchin monkey (Cebus apella, Sapajus apella) on tree eating palm seeds, Lake Sandoval, Tambopata National Reserve, Peru, South America

White-backed vultures (Gyps africanus) and Marabou Stork (Leptoptilos crumeniferus) at a waterhole, Savuti, Chobe National Park, Botswana, Africa

White-backed vultures (Gyps africanus) and Marabou Stork (Leptoptilos crumeniferus) feed on an African elephant (Loxodonta africana), Savuti, Chobe National Park, Botswana, Africa

Two male lions (Panthera leo) feed on an African elephant (Loxodonta africana), Savuti, Chobe National Park, Botswana, Africa

An African elephant (Loxodonta africana) chases away a lion (Panthera leo) resting along its path, Savuti, Chobe National Park, Botswana, Africa

Chimpanzee (Pan troglodytes), Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa

Head on view showing cerata on an aeolid nudibranch, Pteraeolidia ianthina, in Komodo National Park, Indonesia.

Ladybug amphipod, Cyproidea species, side view, taken at Cannibal Rock, Komodo National Park, Indonesia.

Diver looks on at sponges, coral and crinoids in a colorful Komodo seascape, taken at Cannibal Rock, Horseshoe Bay, Komodo National Park, Indonesia.

Tawny eagle (Aquila rapax), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Red fox (Vulpes vulpes) (Vulpes fulva) kit posing, Yellowstone National Park, Wyoming, United States of America, North America

Koala (Phascolarctos cinereus) in a eucalyptus tree, Yanchep National Park, West Australia, Australia, Pacific

Mountain goat (Oreamnos americanus), Glacier National Park, Montana, United States of America, North America

An adult African pygmy falcon (Polihierax semitorquatus), Tarangire National Park, Tanzania, East Africa, Africa

African elephant (Loxodonta africana) and springboks (Antidorcas marsupialis) at waterhole, Nxai Pan National Park, Botswana, Africa

Pack horses at Rumbak village, Hemis National Park, Ladakh region, state of Jammu and Kashmir, India, Asia

Male Black lemur, Strict Nature Reserve of Lokobe, National Park, Nosy Be island, Republic of Madagascar, Indian Ocean

African elephant, Loxodonta africana, wading through river water, Chobe National Park, Botswana, Africa

Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America

Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America

Northern (Steller) sea lions, (Eumetopias jubatus), hauled out on South Marble Island, Glacier Bay National Park, Alaska, United States of America

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

African forest elephant (Loxodonta cyclotis), Dzanga Bai, Dzanga Sangha National Park, UNESCO, Central African Republic

Adult brown bears (Ursus arctos) feeding on humpback whale carcass, Scidmore Cut, Glacier Bay National Park, Alaska, United States of America

Adult brown bear pair (Ursus arctos) mock-fighting at Scidmore Cut in Glacier Bay National Park, Alaska, United States of America

Adult brown bear pair (Ursus arctos) mock-fighting at Scidmore Cut in Glacier Bay National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Young brown bear (Ursus arctos) scratching its back on the gravel at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Alaskan brown bears (Ursus arctos) sow and cubs foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

African penguins (Spheniscus demersus), Table Mountain National Park, Cape Town, South Africa, Africa

Wild saltwater crocodile (Crocodylus porosus) head detail in porous creek on the Hunter River, Mitchell River National Park, Kimberley, Western Australia, Australia, Pacific

A school of batfish (Platax orbicularis) on Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia

Adult marabou storks (Leptoptilos crumenifer), roosting in a tree in Tarangire National Park, Tanzania, East Africa, Africa

Northern shoveler (Anas clypeata) male landing on a frozen pond in the winter, Bosque del Apache National Wildlife Refuge, New Mexico, United States of America, North America

Springbok (Antidorcas marsupialis) buck springing or jumping, Mountain Zebra National Park, South Africa, Africa

Southern ground-hornbill (ground hornbill) (Bucorvus leadbeateri), male, Kruger National Park, South Africa, Africa

Southern yellow-billed hornbill (Tockus leucomelas) flipping a grasshopper, Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Mother Elephant and her two offspring walk through pasture, South Luangwa National Park, Zambia, Africa

Black-breasted snake eagle (black-chested snake eagle) (Circaetus pectoralis), immature, Kgalagadi Transfrontier Park encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Common ostrich (Struthio camelus) chicks, Kgalagadi Transfrontier Park encompassing the former Kalahari Gemsbok National Park, South Africa, Africa