Marsh frogs were introduced to Britain in 1935 and are now our largest Wildlife Centre Surrey Spring 2007

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Marsh frogs were introduced to Britain in 1935 and are now our largest amphibian. Alien species

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Photo credit: © louise murray / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: alie, alien, amphibian, frog, frogspawn, invasive, marsh, native, pond, rana, ridibunda, spawn, species, uk, weed