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

Antarctic fur seal pup (Arctocephalus gazella) caught in fishing net on South Georgia, Southern Ocean, Polar Regions

Southern Giant Petrel (Macronectes giganteus) and Northern Giant Petrel (Macronectes halli) tearing apart an Antarctic fur seal pup in the water at Grytviken on South Georgia, Southern Atlantic Ocean

Mackenzie valley wolves, canadian timber wolves (Canis lupus occidentalis), young wolves, hierarchy fights, biting

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

Two young polar bears (Ursus maritimus) play fighting with each other, Kaktovik, North Slope region, Beaufort Sea, Alaska, America

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

Fighting, playing wolves, cub, Mackenzie Wolf, Alaskan Tundra Wolf or Canadian Timber Wolf (Canis lupus occidentalis) in the snow

Cheetahs (Acinonyx jubatus), female and her subadult female cub struggle with the carcass of a springbok (Antidorcas marsupialis) lamb, Kalahari Desert, Kgalagadi Transfrontier Park, South Africa, Africa