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

Eric Medard / Roe deer (Capreolus capreolus) fawn hiding in vegetation, France, May.

Eric Medard / Roe deer (Capreolus capreolus) fawn hiding in vegetation, France, May.

Eric Medard / Roe deer (Capreolus capreolus) fawn hiding in vegetation, France, May.

Fergus Gill / Razorbill (Alca torda) looking round rocks on a cliff. Fowlsheugh, Scotland, June.

Michael Pitts / Reef whitetip shark (Triaenodon obesus) pup hiding in the reef. Maldives

Loic Poidevin / Short-eared Owl (Asio flammeus) hidden in grass, Breton Marsh, West France, April

Gerrit Vyn / Sidewinder rattlesnake (Crotalus cerastes) partially concealed in sand, Mojave Desert, California, USA

Gerrit Vyn / Incubating adult female King Eider (Somateria spectabilis) in concealment posture on a nest. Bathurst Island, Nunavut, Canada. June.

Ch'ien Lee / Wasp-mimicking Assassin Bug (Inara flavopicta) nymph with ant carcasses glued to its back for concealment, Sarawak, Borneo, Malaysia