Marion Vollborn/ BIA / Leopard (Panthera pardus) male stalking, Sabi-sands Game Reserve, South Africa

John Chan / Juvenile Yellow-crowned night heron (Nyctanassa violacea)predating a twig, learning stalking and hunting skills, Southern California, USA, July.

John Chan / Juvenile Great blue heron (Ardea herodias) predating a twig , learning stalking and hunting skills, Southern California, USA, July.

Jed Weingarten / Wild Wonders of China / Snow leopard (Panthera uncia) hunting and stalking through the mountains in Serxu, Garze Prefecture, Sichuan Province, China

Ingo Arndt / Mountain Lion (Puma concolor), Torres del Paine National Park, Patagonia, Chile

Francois Savigny / Leopard beginning to stalk {Panthera pardus} Moremi National Park, Botswana

Tony Wu / Killer whale / Orca (Orcinus orca) large adult male stalking a large school of Herring (Clupea harengus) in shallow water, Norway, February

George Sanker / Sandhill Crane (Grus canadensis) foraging for food, Tampa Bay, Florida, USA.

Wim van den Heever / Leopard (Panthera pardus) female stalking in grass, Etosha Namibia

Andy Rouse / Bengal tiger (Panthera tigris tigris) portrait, whilst stalking, Bandhavgarh, India.

Andy Rouse / Bengal tiger (Panthera tigris tigris) stalking deer, and craning neck, Ranthambore, India.

Gabriel Rojo / Wild puma (Puma concolor) walking across rocks, profile, Torres del Paine National Park, Chile.