Ross Hoddinott / Kimmeridge Bay ledges at sunset, Dorset, UK. September 2014.

Eric Baccega / Spirit Island, Maligne Lake, Jasper National Park, Rocky Mountains, Alberta, Canada, September 2009

Erlend Haarberg / Three-toed woodpecker (Picoides tridactylus) on tree trunk, Sarek National Park, Laponia World Heritage Site, Lapland, Sweden, September.

Michel Roggo / Iceberg in the sea outside the Kangia Ilulissat Icefjord. Iceberg from the Sermeg Kujalleg Glacier, UNESCO World Heritage Site, Kalaallit Nunaat, Greenland, August 2014. Photographed for The Freshwate...

David Noton / Stars and Milky Way over Durdle Door and the Jurassic Coast, with the lights of Weymouth and Portland beyond, Dorset, England, UK, December 2013.

Sandra Bartocha / European beech (Fagus sylvatica) trees with last leaves in autumn and first snow on the ground. Serrahn, Muritz-National Park, World Natural Heritage site, Germany, November.

Dr. Axel Gebauer / Bacteria - iron and manganese oxidizers and their complementary reducers, in the mud of an empty fish pond, Upper Lusatia Heath and Pond Landscape, Upper Lusatia UNESCO Biosphere Reserve, Germany

Franco Banfi / Silhouette of Southern right whale (Eubalaena australis) Golfo Nuevo, Peninsula Valdes, UNESCO Natural World Heritage Site, Chubut, Patagonia, Argentina, Atlantic Ocean, October

Franco Banfi / Southern right whale (Eubalaena australis) with patches covered in parasitic crustaceans named cyamids or whale lice (Cyamus ovalis). Golfo Nuevo, Peninsula Valdes, UNESCO Natural World Heritage Site,...

Franco Banfi / Southern right whale (Eubalaena australis) with calluses covered in parasitic crustaceans named cyamids or whale lice (Cyamus ovalis). Golfo Nuevo, Peninsula Valdes, UNESCO Natural World Heritage Site...

Franco Banfi / Southern right whale (Eubalaena australis) with patches covered in parasitic crustaceans named cyamids or whale lice (Cyamus ovalis). Golfo Nuevo, Peninsula Valdes, UNESCO Natural World Heritage Site,...

Franco Banfi / Crab covered in algae, Golfo Nuevo, Peninsula Valdes UNESCO Natural World Heritage Site, Chubut, Patagonia, Argentina, Atlantic Ocean, October