Marie Read / Backyard setup for photographing Ruby-throated Hummingbirds (Archilocus colubris) in summer, New York, USA. A medical syringe is used to inject a few drops of sugar solution into the flower (set up in...

Ashley Cooper / The Thames barrier designed to protect the capital from storm surge flooding, London, England, UK. May 2007

Ashley Cooper / The Isle of Eigg off Scotland's west coast, shows the way forward to a renewable future. in 1997 the island was purchased from its fuedal landlord by the Eigg Heritage Trust, a partnership between the...

Ashley Cooper / The Isle of Eigg off Scotland's west coast, shows the way forward to a renewable future. in 1997 the island was purchased from its fuedal landlord by the Eigg Heritage Trust, a partnership between the...

Ashley Cooper / Bio fuel display at the Eden Project in Cornwall, England, UK, April 2007.

Ashley Cooper / Ratcliffe on Soar, a massive coal powered power station in Nottinghamshire, with field of oilseed rape in foreground, UK, May 2008.

Ashley Cooper / Flexible utility pipes taking the water and electric into flating houses houses. IJurb, Amsterdam, the Netherlands, April 2013.

Ashley Cooper / Floating houses on canal near Amsterdam, Netherlands. April 2013.

Ashley Cooper / Floating houses in Ijburg, a suburb of Amsterdam, Netherlands, April.

Ashley Cooper / Floating houses in Ijburg, a suburb of Amsterdam, Netherlands, April.

Ashley Cooper / Floating houses in Ijburg, a suburb of Amsterdam, Netherlands, April.

Ashley Cooper / Floating houses,Ijburg, Netherlands, April 2013.

Ashley Cooper / Floating houses in IJburg, Amsterdam, Netherlands, May 2013.

Ashley Cooper / Floating house with solar panels in Amsterdam, Netherlands. May 2013.

Ashley Cooper / Floating houses in IJburg, Amsterdam, Netherlands, May 2013.

Ashley Cooper / Floating houses in IJburg, Amsterdam, Netherlands, May 2013.

Ashley Cooper / Floating house bed and breakfast with solar panels, Amsterdam, Netherlands, April 2013.

Ashley Cooper / Bedzed the UK's largest eco carbon neutral housing complex in Beddington, London, UK, May 2007.

Ashley Cooper / Turf roof on eco houses at the Centre for Alternative Technology in Machynlleth, Wales, UK, July,

Ashley Cooper / G-Wiz electric car on the streets of London, England, UK, December 2009.

Alex Hyde / Straw or tubular stalactites which are very delicate, hollow structures. They form when calcium carbonate or calcium sulfate dissolved in the water comes out of solution and is deposited in a ring aro...

Nick Upton / Carers flushing eyes of sick, injured Grey seal pup (Halichoerus grypus) 'Boggle' flushed with saline solution, Cornish Seal Sanctuary hospital, Gweek, Cornwall, UK, October. Model released.

David Woodfall / Buff tailed bumblebee (Bombus terrestris) feeding on sugar solution, during experiment by Dr Stephan Wolf into flight behaviour of drones. Queen Mary University, London, England, UK, September 2014.

Cheryl-Samantha Owen / Ankole cattle, cultural icon for the traditionally nomadic Bahima people of Uganda, outside Lake Mburu National Park, Uganda, East Africa. After years of disputes between neighbouring communities and...

Pete Oxford / Brown Pelican beak (Pelecanus occidentalis urinator) Hyper saline solution dripping from the beak tip. This is a common phenomenon amongst sea birds which have a salt gland capable of removing excess...

Jane Burton / Administering a salt solution into mouth of Sable Border Collie dog

Rick Tomlinson / Crew of Farr 40 "Solution" hoist the spinnaker at the windward mark rounding.

Onne van der Wal / Man sailing a plastic roto moulded Escape dinghy. Model Released and Property Released.^^^ These boats are aimed at beginners and provide an inexpensive solution to getting children out on the water.

Onne van der Wal / Mother and child sailing a plastic roto moulded Escape dinghy. ^^^ These boats are aimed at beginners and provide an inexpensive solution to getting children out on the water.

Onne van der Wal / Young boy sailing an plastic roto moulded Escape dinghy. ^^^ These boats are aimed at beginners and provide an inexpensive solution to getting children out on the water.

Onne van der Wal / Young boy sailing a plastic roto moulded Escape dinghy. ^^^ These boats are aimed at beginners and provide an inexpensive solution to getting children out on the water.

Neil Bromhall / Common mussel {Mytilus edulis} holding down Dogwhelk {Nucella lapillus} with byssal in order to feeds on it. Dogwhelk may then drill into mussel shell and inject poisonous solution to feed on mussel.