Ingo Arndt / Buff tip moth (Phalera bucephala) protective web covering caterpillars and food plant, Hungary, June.

Ingo Arndt / Long-jawed orb weaver spider (Tetragnatha nigrita) on web, Germany.

Ingo Arndt / Garden Spider (Araneus diadematus) web with dew drops, at sunrise, Germany, August.

Alex Hyde / Porcelain fungus (Oudemansiella mucida) gills. Peak District National Park, Derbyshire, UK. October.

Sven Zacek / Hepatica (Hepatica nobilis) white morph and normal blue morph, Southern Estonia, April.

Bence Mate / Great egret (Ardea alba) close up of feathers, Lake Csaj, Pusztaszer, Hungary, December. Winner of the Portfolio category of the Terre Sauvage Nature Images Awards competition 2015.

Alex Mustard / Red eye medusa (Polyorchis penicillatus) with hitchhiking amphipods (Hyperia medusarum). Browning Pass, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Edwin Giesbers / Banded demoiselle (Calopteryx splendens) group of four on plant stems, River Leijgraaf, Nijmegen, the Netherlands, August 2013. Finalist in the Invertebrate category of the Wildlife Photographer of th...

Juan Carlos Munoz / European beech forest (Fagus sylvatica) in autumn, view from below in the mist, Ilirska Bistrica, Green Karst, Slovenia, October.

Ole Jorgen Liodden / Landscape of Lillehooksbreen glacier at Svalbard, Norway, July 2008.

Ole Jorgen Liodden / Polar bear (Ursus maritimus) footprints in snow, on cracked ice, Svalbard, Norway, September.

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