Danny Green / 2020VISION / Grey seals (Halichoerus grypus) two adults fighting in the surf, Donna Nook, Lincolnshire, England, UK, October. Photographer quote: "Sex and violence – grey seals are good at both! These two adolesce...

Laurie Campbell / Outfall from hydroelectric Laggan Dam, Lochaber, Scotland, UK, February

Sue Flood / Portrait of Andrew Christian, seventh generation relative of Fletcher Christian, Bounty Bay Pitcairn Island. Model released (release ar or ac). October 2009

Sue Flood / Portrait of Andrew Christian, seventh generation relative of Fletcher Christian, Bounty Bay Pitcairn Island. Model released (release ar or ac). October 2009

Dave Bevan / Wind turbine and solar panel for renewable energy electricity generation, Carmathenshire, Wales, UK, December 2007

Adrian Davies / Disused chalk quarry, now a nature reserve, Surrey, UK

Andy Sands / Early Thorn Moth (Selenia dentaria) late generation, Hertfordshire, England, UK

Adrian Davies / Re-generation of heathland vegetation following major fire in 2006. Thursley Common National Nature Reserve, Surrey, England. July, 2008

Andy Sands / Speckled Wood Butterfly (Pararge aegeria) first generation basking with wings open, Captive, UK

Niall Benvie / Wave breaking on wave powered energy generation station, Islay, Argyll, Scotland, UK

Niall Benvie / Wave breaking on wave powered energy generation station, Islay, Argyll, Scotland, UK

Philippe Clement / Second generation Map butterfly {Araschnia levana} and Hoverflies on thistle

Hans Christoph Kappel / Map butterfly - first brood of year in May/ June, Germany. First generation resemble small fritillary - dusky orange wings marked with black

Pete Oxford / Alexander Blanco holding a new generation GPS solar powered satellite transmitter to be attached to a recently fledged seven month old Wild Harpy Eagle (Harpia harpyja) chick, Cuyabeno Reserve, Amazon...

John Cancalosi / Wind generators in Spain

Paul D Stewart / Illustration of extinct fossil giant salamander (Andrias sheuchzeri), first named as Homo diluvii testis (evidence of a diluvian human or witness of the flood) from the work of Johann Jakob Scheuchzer...

MARTYN COLBECK / Martyn Colbeck on location in Amboseli NP, Kenya, filming from Landrover for BBC television programme "Echo of the Elephants: The next Generation" filmed 1992-1995, Kenya

MARTYN COLBECK / Martyn Colbeck on location in Amboseli NP, filming Elephants for BBC television programme "Echo of the Elephants: The next Generation" filmed 1992-1995, Kenya

MARTYN COLBECK / Martyn Colbeck on location at Amboseli Elephant Research Camp, Kenya, with elephants in the background. On location for BBC television programme "Echo of the Elephants: The next Generation" filmed 199...