Nick Upton / 2020VISION / Juvenile Common / Eurasian cranes (Grus grus) recently released by the Great Crane Project onto the Somerset Levels and Moors, foraging in pastureland near a drainage ditch; one turns over an old cow...

Ashley Cooper / Cow dung pats drying out to be used as biofuel for traditional clay ovens by subsistence farmers in the Sunderbans, eastern India. December 2013.

Ashley Cooper / Dried cow dung to be used as biofuel on fires for cooking in Delhi, India, December 2013.

Ashley Cooper / Cow dung on grazing land laid bare by drought with a pipeline on the California aquaduct. The aquaduct brings water from snowmelt in the Sierra Nevada mountains to famrland in the Central Valley. Cali...

Ashley Cooper / Cow dung on grazing land laid bare by drought with a pipeline on the California aquaduct. The aquaduct brings water from snowmelt in the Sierra Nevada mountains to famrland in the Central Valley. Cali...

Ashley Cooper / Cow pat in a field.

Philippe Clement / Cow dung / cow pat (Bos taurus) in meadow

Pat Tuson / Black and white cow recycling bins in Clissold Park with The Castle Climbing Centre in background, Stoke Newington, London Borough of Hackney, England, UK, January 2013.

Nick Upton / Pair of Yellow Dung Flies (Scathophaga stercoraria) male guarding female as she lays eggs on cow pat. Wiltshire, UK, April.

Nick Upton / Yellow Dung Fly (Scathophaga stercoraria) portrait of male searching for female on a cow pat. Wiltshire, UK, April.

Nick Upton / Male Yellow Dung Fly (Scathophaga stercoraria) guarding female, on a cow pat. Wiltshire, UK, April.

George McCarthy / Cow pat mushroom {Bolbitius vitellinus} growing on a cow pat, Sussex, UK