Male black grouse (Lyrurus tetrix) fighting on snow covered field, Finland

White-backed vulture (Gyps africanus) dominance display, Zimanga private game reserve, KwaZulu-Natal, South Africa, Africa

Adult bull southern elephant seal (Mirounga leonina) issuing a bellow towards another male, Gold Harbour, South Georgia, Polar Regions

Southern elephant seal (Mirounga leonina) mating behavior on South Georgia Island, Southern Ocean

Adult bull southern elephant seals (Mirounga leonina) fighting for breeding grounds on South Georgia Island, Southern Ocean

Fighting Mustangs

Dall's sheep (ovis dalli) rams hitting heads together during dominance display, butting heads, in autumn, denali national park, Alaska, united states of america

Tk0550, Thomas Kitchin; Moose - Dominance Display. Autumn Rut. Rocky Mountains. Alces Alces.