Oliver Wright / Four-spotted chaser (Libellula quadrimaculata) resting on stem, covered in early morning dew. Skipwith Common National Nature Reserve, North Yorkshire, England, UK. May. Focus stacked image.

Paul Bertner / Flat Bug (Aradidae) trapped in water droplet, Mananara Nord National Park, Madagascar

Steve Downer / Newly hatched slug (Gastropoda) approaching a water droplet on a leaf before bursting it and retracting its eyestalks, Birmingham, England, UK. Controlled conditions.

Andy Rouse / Mute Swan (Cygnus olor) courtship behaviour, Wales, UK, April.

Markus Varesvuo / Black-throated diver (Gavia arctica) on water, Finland, May.

Andy Rouse / Bengal tiger (Panthera tigris tigris) female 'T19 Krishna' carrying 2 month cub, Ranthambhore National Park, India.

Floris van Breugel / Ice cave melting in Mendenhall Glacier, Juneau, Alaska, USA, August 2014.

Denis-Huot / Three Lesser flamingos (Phoeniconaias minor) silhouetted in front of geyser, Lake Bogoria National Reserve, Kenya.

Cyril Ruoso / Banana (Musa sp) leaf detail with water drops, Peru

Cyril Ruoso / Banana (Musa sp) close up of leaf with water droplets, Rwanda

Cyril Ruoso / Banana (Musa sp) close up of leaf with water droplets, Rwanda

Sandesh Kadur / Large scaled pit viper (Trimeresurus macrolepis) head profile, water droplet below, Western Ghats, Southern India