Rivers can run for many hundreds of miles. The longest river in the world is the Nile in Africa. It is 6,700km long. The longest river in Britain is the River Severn, which is 354km long.

Credits

Image: Rivers by Joe Dunckley

Information sourced from:

The IUCN Red List of Threatened Species (2015), Arvicola amphibius [online], Available from: http://www.iucnredlist.org/details/full/2149/0 [accessed 01/08/2015].

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