Carol Walker / Lusitano horse, dun stallion pawing the ground, Portugal, May 2011

Terry Whittaker / Bay Icelandic horse pawing snowy ground, Snaefellsnes Peninsula, Iceland, March.

Carol Walker / Wild dappled grey Mustang stallion pawing restlessly as rival is near his family. Adobe Town Herd Area, Wyoming, USA. April.

Aflo / Stray Cat, black and white, pawing, Aichi, Japan.

Adri de Visser / African Lion (Panthera leo) female pawing Kob (Kobus kob) calf, Queen Elizabeth National Park, Uganda

Carol Walker / Wild Mustang, roan horse with front leg extended whilst pawing ground as a sign of impatience Sand Wash Basin Herd Area, Colorado, USA.

Sean Crane / Leopard (Panthera pardus) juvenile pawing at a Cape Pangolin (Manis temminckii), Linyanti Concession, Botswana

Ingo Arndt / Grizzly Bear (Ursus arctos horribilis) mother playing with cub, Lake Clark National Park, Alaska

Carol Walker / Wild horses / Mustangs, stallion pawing the ground, McCullough Peaks, Wyoming, USA

Tony Heald / African lion (Panthera leo) two cubs playing with very large elephant dung, Etosha National Park, Namibia October

Orsolya Haarberg / Chamois (Rupicapra rupicapra) pawing the ground in snow, Alps, Gran Paradiso National Park, Italy, November

Carol Walker / Wild Horse / mustang, young foal pawing, Pryor Mountains, Montana, USA, June