Ingo Arndt / Magnetic Termite (Amitermes meridionalis) mounds in grassland, Litchfield National Park, Northern Territory, Australia.

Ingo Arndt / Bower of Vogelkop bowerbird (Amblyornis inornatus) front entrance of bower decorated with red fruit and acorns, Arfak Mountains, West Papua, Indonesia.

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

Cyril Ruoso / Puya flowers (Puya sp) Cordillera Blanca Massif, Andes, Peru.

Russell Cooper / Blackening waxcap fungus (Hygrocybe sp.) New Forest, Hampshire, UK.

Alex Hyde / Cable cars at Fiss, Nordtirol, Austrian Alps, June 2014.

Merryn Thomas,Merryn Thomas / Black and white image of three punts, Mevagissey, Cornwall, England, January.

Michael Pitts,Michael Pitts / Engine room ventilator shafts of oil tanker 'Seiko Maru'. Sunk in Chuuk Lagoon 17/18th February 1944, Chuuk Lagoon, Pacific

Bence Mate / Leaf cutter ants (Atta cephalotes) carrying sections of leaves, to be used for cultivating nutritious fungi, Santa Rita, Costa Rica

Colin Varndell / Fresh Wych elm (Ulmus glabra) leaves in spring. Dorset, UK May

Kirkendall-Spring / Marengo Wind Facility near Dayton. Washington, USA. August 2011.

Nick Garbutt / Large aerial pitchers of natural hybrid Pitcher Plant (Nepenthes stenophylla x Nepenthes veitchi). Montane mossy heath forest or 'kerangas', southern plateau, Maliau Basin, Sabah's 'Lost World', Borne...