DR.0029-00Leopard seal, Hydrurga leptonyx, with mouth open showing teeth.
Signy Island, Antarctica
TJ.0317-00The Giant petrel is an aggressive predator and scavenger. Sub Antarctic.
WL.0196-00Long-tailed jaegers, Stercorarius longicaudus, defending their nest in an aerial threat display, Victoria Island, Nunvaut, Arctic Canada
WL.0296-00Adult male snowy owl, Bubo scandiaca, in threat display on its tundra nesting grounds, Arctic Canada