Wild Grey wolf pup (Canis lupus lupus), Finland

Wild Grey wolf pup (Canis lupus lupus), Finland

Spotted hyena (Crocuta crocuta) at night, Shompole, Kenya, East Africa, Africa

Adult male hooded seal (Cystophora cristata) hauled out on pack-ice in seasof Denmark Strait, between Iceland and Greenland

Harp seal (Pagophilus groenlandicus), hauled out on the pack-ice in between Iceland and Greenland in the Denmark Strait, Denmark

Pack Ice Type B killer whales (Orcinus orca), finding a leopard seal (Hydrurga leptonyx), on an ice floe in Antarctica, Polar Regions

Bull southern elephant seal (Mirounga leonina) on South Georgia Island, Southern Ocean

Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe

Polar bear (Ursus maritimus), skins and eats killed conspecific, pack ice at Kvitoya, Spitsbergen archipelago, Svalbard, Norway, Europe

Grey Wolves (Canis Lupus) Demonstrating Hierarchy, Montebello, Quebec, Canada

Eastern timber wolf timberwolves in a pack with typical pack behavior rank order aggression Animals

European wolf rank oriented behaviour of wolves rank order Germany Animals

European wolf rank oriented behaviour of wolves rank order Germany Animals

African Ostrich (Struthio camelus) female with pack of chicks in Kgalagadi transfrontier park, South Africa

African Ostrich (Struthio camelus) female with pack of chicks grooming in sand in Kgalagadi transfrontier park, South Africa

Gray Wolf (Canis lupus) during winter in National Park Bavarian Forest (Bayerischer Wald). Europe, Central Europe, Germany, Bavaria, January

Killer whale (Orcinus orca) and Emperor penguins (Aptenodytes forsteri) on pack ice in the Ross Sea, McMurdo Sound, Antarctica

Landscape of Svalbard in Norway, also known as Spitsbergen. This territory stretches from latitude 75 to 80 degrees to the pack ice a few hundred kilometers from the North Pole. Melting ice, early global warming. Baie de la Madeleine here, a coastal landscape rising to 80 degrees latitude, where blocks of ice and small icebergs detached from glaciers drift on the water. Old steam train in front of Ny-Alesund weather station

Pack of European wolves (Canis lupus lupus) playing on a snow-covered bog at dawn. Finland

Pack of wolves howling (Canis lupus) on snow, captive, Sumava National Park, Bohemian Forest, Czech Republic, Europe

Pack of wolves howling (Canis Lupus) on snow, captive, Sumava National Park, Bohemian Forest, Czech Republic, Europe

Gray Wolf (Canis lupus) during winter in National Park Bavarian Forest (Bayerischer Wald). Europe, Central Europe, Germany, Bavaria, January

Wolfs (Canis Lupus) on snow, captive, Sumava National Park, Bohemian Forest, Czech Republic, Europe