Ingo Arndt / Fishing spider {Ancylometes bogotensis} on water surface, French Guyana

Erlend Haarberg / Arctic fox (Alopex lagopus) silhouetted against stormy sky, Dovrefjell-Sunndalsfjella National Park, Norway, July.

Erlend Haarberg / Ice patterns on lake, Sorvagen, Moskenes, Lofoten, Nordland, Norway, January.

Chris & Monique Fallows / King penguin (Aptenodytes patagonicus) colony with storm approaching. Grytviken, South Georgia Island.

Terry Whittaker / Red fox (Vulpes vulpes) cub on railway embankment with train passing behind, Kent, UK, July.

Denis-Huot / Group of male African lions (Panthera leo) resting with storm clouds overhead, Masai-Mara Game Reserve, Kenya. September.

Denis-Huot / Cheetah (Acinonyx jubatus) female standing below dark storm clouds, Masai-Mara game reserve, Kenya.

Kim Taylor / Raft spider (Dolomedes fimbriatus) male resting on water surface, Surrey, UK

Andy Sands / Long Water Measurer (Hydrometra stagnorum) drinking by piercing surface tension with mouthparts. Captive, UK, July.

Ingo Arndt / Pond Skater (Gerris sp) using surface tension to walk on water, a true bug of the Heteroptera suborder, Europe

Dietmar Nill / Raft spider (Dolmedes fimbriatus) on water. Germany, Europe

Nick Upton / Common pond skater (Gerris lacustris) standing on the surface of a garden pond before skating off at speed, with many colonial Green algae (Volvox) spheres moving below the surface, Wiltshire, England...