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Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead elephant seal pup at Royal Harbor, South Georgia

Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead fur seal pup at St. Andrews Bay, South Georgia

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Female southern elephant seal (Mirounga leonina) with newborn pup as skuas (Catharacta antarctica) fight for the afterbirth, South Georgia

Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island

Yellow Crowned Night Heron (Nyctanassa Violacea), wading bird of the Americas that feeds on crustacea, Bermuda, Atlantic

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Petrified sand dunes, White Canyon State Park, Red Cliffs Desert Reserve near St. George, Utah, United States of America

Seagulls along the river Corrib with the Wolfe Tone Bridge in the background, Galway, Connemara, County Galway, Connacht, Republic of Ireland

Cormorants, Northeast branch of the Beagle Channel, Tierra del Fuego, Patagonia, Chile, South America

American oystercatcher (Haematopus palliatus), on Isla Espiritu Santo, Baja California Sur, Sea of Cortez, Mexico, North America

Heermann's gulls (Larus heermanni), quarreling at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica

Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica

A pair of hooded orioles (Icterus cucullatus), in courtship, San Jose del Cabo, Baja California Sur, Sea of Cortez, Mexico, North America

A pair of hooded orioles (Icterus cucullatus), in courtship, San Jose del Cabo, Baja California Sur, Sea of Cortez, Mexico, North America

A Gila woodpecker (Melanerpes uropygialis), on perch, San Jose del Cabo, Baja California Sur, Sea of Cortez, Mexico, North America

Eared grebes (Podiceps nigricollis), in Puerto Refugio, Angel de la Guarda Island, Baja California, Sea of Cortez, Mexico, North America

Adult San Esteban spiny-tailed iguana (Ctenosaura conspicuosa), endemic to Isla San Esteban, Baja California, Mexico, North America

Great kiskadee (Pitangus sulphuratus) a large colorful tyrant flycatcher, common in the Pacific North, Esperanza, Nosara, Guanacaste, Costa Rica

Female mantled howler monkey (Alouatta palliata) with clinging infant eating flower, Pacific coast forest, Esperanza, Nosara, Guanacaste, Costa Rica

Female mantled howler monkey (Alouatta palliata) known for its loud call, eating in Pacific coast forest, Esperanza, Nosara, Guanacaste, Costa Rica

Infant riding on the back of a female mantled howler monkey (Alouatta palliata) in Pacific coast forest, Esperanza, Nosara, Guanacaste, Costa Rica

Juvenile mantled howler monkey (Alouatta palliata) in Pacific coast forest, known for their loud call, Esperanza, Nosara, Guanacaste, Costa Rica

Female mantled howler monkey (Alouatta palliata) eating tree leaves in a north Pacific coast forest, Esperanza, Nosara, Guanacaste, Costa Rica

Wood stork (Mycteria americana) big wading bird of the south Americas, scavenging on black sand turtle beach, Ostional, Guanacaste, Costa Rica

Wood storks (Mycteria americana) big wading bird of the south Americas, scavenging on black sand turtle beach, Ostional, Guanacaste, Costa Rica

Broad-winged hawk (Buteo platypterus) small raptor, common in the Americas as far south as Brazil, Playa Garza, Nosara, Guanacaste, Costa Rica

Broad-winged hawk (Buteo platypterus) small raptor, common in the Americas as far south as Brazil, Playa Garza, Nosara, Guanacaste, Costa Rica

Round-headed katydid (bush cricket) (Amblycorypha), earhole in forelegs, superb leaf mimic with leg scraping song, Guanacaste, Costa Rica

Tourists on boat trip through mangrove fringed Nosara River estuary and Biological Reserve at sunset, Boca Nosara, Nosara, Guanacaste, Costa Rica

Tourists on boat trip through the mangrove fringed Nosara River estuary, with locals handline fishing, Boca Nosara, Nosara, Guanacaste, Costa Rica

Local man handline fishing at the mangrove fringed Nosara Boca (river mouth) estuary at sunset, Nosara River, Boca Nosara, Guanacaste, Costa Rica

Hiker watching yellow-billed chough (pyrrhocorax graculus) in mist, Three Peaks Nature Park, Dolomites, South Tyrol (Alto Adige), Italy

Pieces of petrified wood on hills overlooking Dead Wash, Petrified Forest National Park, Arizona, United States of America

The boundary fence on the east side of Petrified Forest National Park, Arizona, United States of America

Red hills of bentonite clay overlooking Dead Wash in Petrified Forest National Park, Arizona, United States of America

Galapagos Land Iguana (Conolophus subcristatus), large lizard can can grow to five feet long and live for 60 years, South Plaza island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Reflections in the calm waters of Jackson Pass Provincial Marine Park, British Columbia, Canada, North America

Yellow-spotted river turtle (Podocnemis unifilis), Lake Sandoval, Tambopata National Reserve near Puerto Maldonado, Peru, South America

American Bison in their natural habitat of the Badlands, South Dakota, United States of America, North America

A pair of robust ghost pipefish (Solenostomus cyanopterus) hover above the seafloor in Komodo National Park, Indonesia. This tropical area in the western Pacific harbors an extraordinary array of marine organisms.

A tube anemone grows on a sandy seafloor in Komodo National Park, Indonesia. This tropical area in the western Pacific harbors an extraordinary array of marine organisms.

A massive school of bigeye trevally (Caranx sexfasciatus) swims in deep water near Cocos Island, Costa Rica. This remote island is home to an incredible variety of marine life.

A well-camouflaged ornate ghost pipefish, Solenostomus paradoxus, hovers over a reef in Komodo National Park, Indonesia.

Adult black-browed albatross (Thalassarche melanophrys), trio in courtship display at nesting site on New Island, Falklands, South America

Adult black-browed albatross (Thalassarche melanophrys), pair in courtship display at nesting site on New Island, Falklands, South America

Adult king penguins (Aptenodytes patagonicus) returning from sea to the nesting colony at Salisbury Plain, South Georgia, Polar Regions

Adult king penguins (Aptenodytes patagonicus) returning to sea from the nesting colony at Salisbury Plain, South Georgia, Polar Regions

Brown capuchin monkey (Cebus apella) (Sapajus apella) on tree, Tambopata National Reserve, Puerto Maldonado, Tambopata Province, Madre de Dios, Peru, South America

An adult bull killer whale (Orcinus orca) surfacing in Johnstone Strait, British Columbia, Canada, Pacific Ocean, North America

Southern elephant seals (Mirounga leonina), hauled out for their annual catastrophic molt (moult) on the beach at Snow Island, Antarctica, Polar Regions

Adult black-legged kittiwakes (Rissa tridactyla) feeding at the base of a glacier in the Svalbard Archipelago, Norway, Arctic, Europe

Curious adult bull walrus (Odobenus rosmarus rosmarus) approach the ship at Moffen Island in the Svalbard Archipelago, Norway, Arctic, Europe

The endemic Galapagos marine iguana (Amblyrhynchus cristatus) swimming in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Adult Swallow-tailed gull (Creagrus furcatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Adult brown pelican (Pelecanus occidentalis), in flight, Isla Carmen, Baja California Sur, Mexico, North America

King penguin (Aptenodytes patagonicus) adult and chick at breeding and nesting colony at Salisbury Plain, South Georgia, Polar Regions

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain in the Bay of Isles, South Georgia, Polar Regions