Mute swan (Cygnus olor) at sunrise, territorial behaviour, Kent, England, United Kingdom, Europe

Black grouse (Lyrurus tetrix), fighting, territorial behaviour, Kuusamo, Finland, Europe

Cheetas scent marking their territory, Moremi, Botswana, Southern Africa

Black-headed Bunting (Emberiza melanocephala) male territorial calling, Bulgaria

Pheasant (Phasianus colchicus) courtship, territory, male, Texel, The Netherlands, Europe

Red Deer (Cervus elaphus), fighting stags, Copenhagen, Denmark, Europe

Eastern Gray Kangaroo (Macropus giganteus), two males fighting on a meadow, Great Otway National Park, Victoria, Australia, Oceania

Red fox (Vulpes vulpes) fighting, Netherlands

Red deer (Cervus elaphus) on a snowy meadow, captive, Bavaria, Germany, Europe

Great crested grebes (Podiceps cristatus) fighting, fight over territory, Hesse, Germany, Europe

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

Alaskan Coastal Bears (Ursus Arctos) Fighting, Geographical Bay, Alaska, United States Of America