Sven Zacek / Ural owl (Strix uralensis) female on the nest with nestling hidden under wing. Tartumaa, Southern Estonia. April.

Ingo Arndt / Warty chameleon male hidden behind branch {Chamaeleo verrucosus} Madagascar

Eric Dragesco / Wild Snow leopard (Uncia uncia) feeding on a kill hidden behind a rock, with a Eurasian magpie (Pica pica) in the foreground, Altai Mountains, Mongolia, February.

Ingo Arndt / Hedgehog (Erinaceus europaeus) hibernating hidden in leaves, Germany, captive.

Ingo Arndt / Looper moth caterpillar mimics twig {Geometridae} Guanacaste, Costa Rica

Ingo Arndt / European edible frog {Rana esculenta} hidden amongst pondweed Germany

Gabriel Rojo / Puma (Puma concolor) hidden in vegetation, captive, La Pampa , Argentina

Alex Hyde / Crane fly / Daddy long legs (Tipula paludosa) female covered in morning dew. Peak DIstrict National Park, Derbyshire, UK. September. Winner of the Hidden Britain Category of the BWPA Awards 2015.

Ole Jorgen Liodden / Bengal tiger (Panthera tigris tigris) close up of eye, hidden in vegetation, Bandhavgarh, India.

Andy Sands / Mining bee / Little flower bee (Anthophora bimaculata) taking nectar and pollen from Common fleabane (Pulicaria dysenterica) flower, with pollen covered scopa, Surrey, England, UK. August. Highly comm...

Kristel Richard / Portrait of a rare five-day old Posavina filly hidden by her mother's tail, Lonja, Croatia, August.

Andy Rouse / Coquerel's Sifakas (Propithecus coquereli) in coastal rainforest, Palmarium Reserve, Madagascar