832-369864 - Mackenzie-Wolves, Eastern wolf, Canadian wolf (Canis lupus occidentalis) in snow, fight for social ranking

832-369875 - Mackenzie Valley Wolves, Canadian Timber Wolves (Canis lupus occidentalis) in the snow, fight for rank order, alpha female, right, reprimanding a young wolf, in front of the pack

832-370476 - Bullfight at the Plaza de Toros, Seville, Andalusia, Spain, Europe

1167-281 - Cinnamon black bear (Ursus americanus) eats autumn (fall) berries, Grand Teton National Park, Wyoming, United States of America, North America

832-320064 - Molecule man, sculpture by Borofsky, Berlin, Germany

832-313877 - The wreck of a shot down military plane of World War 2, Palau, Micronesia

832-313876 - The wreck of a shot down military plane of World War 2, Palau, Micronesia

712-2679 - Fishing on the ice, Maloe More (Little Sea), frozen lake during winter, Olkhon island, Lake Baikal, UNESCO World Heritage Site, Irkutsk Oblast, Siberia, Russia, Eurasia

764-4510 - Two Bison (Bison bison) bulls sparring, Yellowstone National Park, Wyoming, United States of America, North America

832-303284 - Mural painting depicting fishermen in a storm, Riomaggiore, Liguria, Cinque Terre, Italy, Europe

832-295158 - Gellert Hill with Citadel and Statue, , Budapest, Hungary, Southeast Europe, Europe,

832-288692 - Folk in battle, historical medieval city parade, in Canellis, LÂ¥assedio di Canelli, Canelli, Asti Province, Piemont, Italy

832-288694 - Folk in battle, historical medieval city parade, in Canellis, LÂ¥assedio di Canelli, Canelli, Asti Province, Piemont, Italy

832-268048 - Bronze statue of George the Victorious, Moscow, Russia

832-239395 - Bullfighting arena in Saintes-Maries-de-la-Mer, Camargue, Southern France, France, Europe

832-239390 - Bullfighting arena in Saintes-Maries-de-la-Mer, Camargue, Southern France, France, Europe

832-239392 - Bullfighting arena in Saintes-Maries-de-la-Mer, Camargue, Southern France, France, Europe

1161-7918 - Protest mural depicts struggle between Protestants and Catholics and ethnic cleansing painted on house wall in Belfast, Northern Ireland

1161-2903 - Man wades through flood water in Swinbrook, Oxfordshire, England, United Kingdom

1161-2904 - Four wheel drive car drives through flooded road in Swinbrook, Oxfordshire, England, United Kingdom

1161-1662 - Tanker truck on the Great Western Highway from Sydney to Adelaide, New South Wales, Australia

1161-2902 - Four wheel drive car drives through flooded road in Swinbrook, Oxfordshire, England, United Kingdom

1161-1659 - Mustangs fighting in the Red Centre, Northern Territory, Australia

1161-899 - A hungry black mongrel dog scavenging among a pile of old bones at Nalu, Rajasthan, India.

832-211347 - Knights fighting with swords, Medieval Week in Visby, Gotland Island, Sweden, Scandinavia, Europe

832-211345 - Knights fighting with swords, Medieval Week in Visby, Gotland Island, Sweden, Scandinavia, Europe

832-211348 - Knight jousting with a lance on horseback, Medieval Week in Visby, Gotland Island, Sweden, Scandinavia, Europe

832-211349 - Knight jousting with a lance on horseback, Medieval Week in Visby, Gotland Island, Sweden, Scandinavia, Europe

1112-1024 - Adult gentoo penguins (Pygoscelis papua) in snow storm, Port Foster, Deception Island, Antarctica, Southern Ocean, Polar Regions

1112-1023 - Adult gentoo penguins (Pygoscelis papua) in snow storm, Port Foster, Deception Island, Antarctica, Southern Ocean, Polar Regions

832-175870 - Several hundred citizens of Berlin use the snow for a snowball fight "Kreuzberg vs. Neukoelln", that has been organised on the internet, Goerlitzer Park, Berlin, Germany, Europe

832-175868 - Several hundred citizens of Berlin use the snow for a snowball fight "Kreuzberg vs. Neukoelln", that has been organised on the internet, Goerlitzer Park, Berlin, Germany, Europe

911-9723 - Sheep struggle in the unseasonal winter weather in late March 2013, Ambleside, Lake District, Cumbria, England, United Kingdom, Europe

733-5647 - Winter camping, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5632 - Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5634 - Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5649 - Climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5642 - Ice climbing on Aiguille du Midi, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5631 - Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

733-5633 - Ice climber at Mer de Glace glacier, Chamonix, Haute-Savoie, French Alps, France, Europe

832-150430 - Relief, Bayon Temple, Angkor temples, Siem Reap, Cambodia, Indochina, Southeast Asia

1126-228 - The Old Annual Custom of Bottle-kicking, Hallaton, Leicestershire, England, United Kingdom, Europe

832-139478 - Mosaic representation of gladiator battles, Colosseum, Rome, Italy, Europe

733-5534 - Climbing expedition on Mount McKinley, 6194m, Denali National Park, Alaska, United States of America, North America

832-126994 - Monument to the Battle of 1700 between Russia and Sweden, Narva River, Narva, Estonia, Baltic States, Northern Europe

832-123905 - Elk Antler Arch, world's largest arch of elk antlers (Cervus canadensis), Afton, Wyoming, United States of America, USA

832-123209 - Eringer battle cow in a cow fighting arena, Valais, Switzerland, Europe

832-123906 - Elk Antler Arch, world's largest arch of elk antlers (Cervus canadensis), Afton, Wyoming, United States of America, USA

832-101705 - Shaolin monk

832-101706 - Shaolin monk

911-9508 - A warning sign at the top of the Struggle, on Kirkstone Pass, Lake District, Cumbria, England, United Kingdom, Europe

832-116646 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-110773 - Bullfight in the arena of Sanlucar de Barrameda as seen from the grandstand, Costa de la Luz, Andalusia, Spain, Europe

832-116645 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-116649 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-116647 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-98039 - Bull and Bear, symbols for rising and dropping stock exchange prices, Munich, Bavaria, Germany, Europe

832-116648 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-116650 - Camargue horses (Equus caballus) stallions fighting in water, Saintes-Marie-de-la-Mer, Camargue, France, Europe

832-77380 - Prehistoric rock paintings, Akakus, Acacus Mountains or Tadrart Acacus, Sahara desert, Fezzan, Libya, North Africa

832-49398 - Sculpture of La bete du Gevaudan, Haute Loire, Auvergne, France, Europe

829-1739 - Museum of the Macedonian Struggle on the banks of the Vardar River in Skopje, Macedonia, Europe

1113-58300 - Mountain Gorillas drumming, Virunga Mountains, Zaire, Central Africa

1113-55098 - Man and bull at a bullfight, Corrida de Toros, Jerez de la Fronere, Cadiz province, Andalusia, Spain, Europe

1113-54563 - Torrero and bull at a bullfight, Corrida de Toros, Jerez de la Frontera, Cadiz, Andalusia, Spain, Europe

1116-32551 - Guatemala, Puerto Quetzal, Sailfish jumping.

1116-32552 - Guatemala, Marina Pez Vela, Sailfish jumping.

857-60915 - A young boy grills corn to sell by the road outside of Guadalajara, Mexico.

857-66990 - Front view of a pack of female bicycle racers in the Amgen Tour of California, downtown Santa Rosa, California.

857-62393 - Tim O'Neil climbing on Rostrum 5.12 in Yosemite National Park, California.

857-55446 - Central High School, Little Rock, Arkansas site of the 1957 school integration/desegregation riots & federal government intervention.

857-44284 - Local man walking behind a pack donkey near El Potrero Chico, Mexico.

857-41418 - Man in a red shirt lead climbing near Rifle, Colorado (High Angle Perspective).

857-43829 - Two rock climbers scale a vertical sandstone cliff in Castle Valley, Utah.

857-43825 - Female climber bouldering on an overhang near San Antonio, Texas.

857-36483 - Beth Rodden belays her husband, big wall climber Tommy Caldwell, from a portalege as Caldwell is rock climbing Dihedral wall, a multi pitch route on El Capitan in Yosemite National Park, California.

857-33955 - Tajik farmers and their families thresh wheat with oxen and donkeys, in a side valley to the Panjshir Valley, in the Hindu Kush mountains, September 10, 2002. Agriculture is primitive and labor intensive in this remote valley. The Panjshir Valley and its side valleys have long been a stronghold for the Tajik people, and the famous commander Ahmed Shah Masood, in their struggle first against the Soviets and then against the Taliban. The Tajik are one of the larger ethnic groups in Afghanistan, second only to the Pashtun people.

857-33942 - Children play on a tank in the Panjshir Valley while waiting for ceremonies to begin in honor the one year anniversary of the assasination of Ahmad Shah Masood, September 9, 2002. The Panjshir Valley was a stronghold for the Tajik people and the famous commander Masood in their struggle first against the Soviets and then against the Taliban. The valley and villages of the Panjshir were subjected to heavy bombing and destruction during the Afghan-Soviet war, but was never fully occupied. Now it is the heartland for the powerful Tajik ethnic group, the second largest in Afghanistan, who came to partial power after the fall of the Taliban.

857-25045 - Matt Ciancio struggles to clip his rope on a very steep climb in the Owens River Gorge, California.

857-8185 - Pushing and pulling heavy rafts over log jams on the Rio Azul during a 2 week expedition on the remote and rarely traveled river in the Peruvian Amazon.

794-3464 - Mansudae Grand Monument depicting the Anti Japanese Revolutionary Struggle and Socialist Revolution and Construction, Mansudae Assembly Hall on Mansu Hill, Pyongyang, Democratic People's Republic of Korea (DPRK), North Korea, Asia

794-3547 - People coming to pay respects at the Monument to the Victorious Fatherland Liberation war, Pyongyang, Democratic People's Republic of Korea (DPRK), North Korea, Asia

794-3467 - Mansudae Grand Monument depicting the Anti Japanese Revolutionary Struggle and Socialist Revolution and Construction, Mansudae Assembly Hall on Mansu Hill, Pyongyang, Democratic People's Republic of Korea (DPRK), North Korea, Asia

794-3546 - Statue illustrating the War for Independence, Monument to the Victorious Fatherland Liberation war, Pyongyang, Democratic People's Republic of Korea (DPRK), North Korea, Asia

794-3461 - Mansudae Grand Monument depicting the Anti Japanese Revolutionary Struggle and Socialist Revolution and Construction, Mansudae Assembly Hall on Mansu Hill, Pyongyang, Democratic People's Republic of Korea (DPRK), North Korea, Asia

832-18440 - Springbok Antelope (Antidorcas marsupialis), Central Kalahari Game Reserve, Botswana, Africa

832-29942 - Northern Cardinal (Cardinalis cardinalis), pair fighting, Bandera, Hill Country, Texas, USA

832-18584 - Waterbuck (Kobus ellipsiprymnus), fighting, Kruger National Park, South Africa

1194-1963 - Namibia child at bernard nordkamp (youth) center, katatura, a black township of windhoek, dating from apartheid. country very high rates, mural behind depicts struggle against aids

1194-1961 - Namibia child at bernard nordkamp (youth) center, katatura, a black township of windhoek, dating from apartheid. country very high rates, mural behind depicts struggle against aids

1194-1962 - Namibia child at bernard nordkamp (youth) center, katatura, a black township of windhoek, dating from apartheid. country very high rates, mural behind depicts struggle against aids

1194-1959 - Namibia child at bernard nordkamp (youth) center, katatura, a black township of windhoek, dating from apartheid. country very high rates, mural behind depicts struggle against aids

994-32 - Looking up The Struggle, Lake District, England, UK

1024-173 - Man flying power kite on the Downs, Bristol, UK

1024-172 - Man flying power kite on the Downs, Bristol, UK

979-4743 - The Lindblad Expedition ship National Geographic Explorer operating in and around the Antarctic peninsula in Antarctica

979-4742 - The Lindblad Expedition ship National Geographic Explorer operating in and around the Antarctic peninsula in Antarctica

979-3467 - Adult gentoo penguins (Pygoscelis papua) going and returning from sea to feed, Neko Harbour in Andvord Bay, Antarctica

979-5271 - A stranded Svalbard reindeer fawn (Rangifer tarandus platyrhynchus) on ice floe at Monaco Glacier in Wood Fjord, Spitsbergen, Svalbard Archipelago, Norway

979-5269 - A stranded Svalbard reindeer fawn (Rangifer tarandus platyrhynchus) on ice floe at Monaco Glacier in Wood Fjord, Spitsbergen, Svalbard Archipelago, Norway