Piper Mackay / Container freighter travelling through the Panama canal, Panama, November 2008

Andrew Parkinson / Water vole {Arvicola terrestris} standing up to reach overhanging berries, Cromford Canal, Derbyshire, UK sequence 1/4

Andrew Parkinson / Water vole {Arvicola terrestris} standing up to reach overhanging berries, Cromford Canal, Derbyshire, UK sequence 4/4

Duncan Murrell / Local field staff of the Borneo Nature Foundation constructing dams in the canals in the Sabangau (peat-swamp) Forest, to prevent drying out that increases the risk of forest fires. Central Kalimantan...

Duncan Murrell / Local field staff of the Borneo Nature Foundation constructing dams in the canals in the Sabangau (peat-swamp) Forest, to prevent drying out that increases the risk of forest fires. Central Kalimantan...

Duncan Murrell / One of the dams constructed by the local field staff of the Borneo Nature Foundation in the canals in the Sabangau (peat-swamp) Forest. These are made to combat forest fires. Central Kalimantan, Indon...

Duncan Murrell / One of the dams constructed by the local field staff of the Borneo Nature Foundation in the canals in the Sabangau (peat-swamp) Forest. These are made to combat forest fires. Central Kalimantan, Indon...

Claudio Contreras / Bottlenose Dolphin (Tursiops truncatus) in mangrove canals, Bahia Magdalena, Baja California Peninsula, June

Laurent Geslin / Honeybee (Apis mellifera) taking off from flower with canal in the background, Strasbourg, France. June 2014.

Loic Poidevin / View down a canal in Burano, one of the islands in the lagoon, Venice, Italy 2016

Loic Poidevin / View of boat on canal and buildings on Burano, one of the islands on the lagoon, Venice, Italy

Loic Poidevin / View along canal and buildings of Burano, one of the islands on the lagoon, Venice, Italy