What is Moor frog?
{{Taxobox | name = Moor frog | status = LC | status_system = IUCN3.1 | trend = stable | image = RanaArvalisFemale.jpg | image_width = 240px | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[Amphibia]] | ordo = [[Anura]] | familia = [[Ranidae]] | genus = ''[[Rana (genus)|Rana]]'' | species = '''''R. arvalis''''' | binomial = ''Rana arvalis'' | binomial_authority = [[Sven Nilsson|Nilsson]], 1842 |synonyms=*''Rana terrestris'' (Andrzejowski, 1832) *''Rana arvalis'' (Nilsson, 1842) *''Rana oxyrrhinus'' (Steenstrup, 1846) *''Rana angustifrongs'' (Schiff in Thomas, 1855) *''Rana temporaria var. arvalis'' (Günther, 1859) *''Rana oxyrhina'' (Filippi, 1865) *''Rana oxyrhinus var. striatus'' (Koch, 1872) *''Rana (Crotaphitis) arvalis'' (Schulze, 1891) *''Rana arvalis altaica'' (Kashchenko, 1899) *''Rana arvalis var. striata'' (Nikolskii, 1905) *''Rana altaica'' (Kashchenko, 1909) *''Rana arvalis wolterstorffi'' (Fejérváry, 1919) *''Rana terrestris altaica natio issaitschikovi'' (Terentjev, 1927) *''Rana terrestris terrestris'' (Mertens and Müller, 1928) *''Rana terrestris wolterstorffi'' (Mertens and Müller, 1928) *''Rana arvalis arvalis'' (Lindholm, 1929) *''Rana asiatica var. oxyrrhinus'' (Pavlov, 1933) *''Rana arvalis wolterstorffi'' (Mertens and Müller, 1940) *''Rana arvalis issaltschikovi'' (Mertens and Wermuth, 1960) *''Rana wolterstorffi'' (Cochran, 1961) *''Rana altaica'' (Ye, Fei, and Xiang, 1981) *''Rana (Rana) altaica'' (Dubois, 1987) *''Rana (Rana) arvalis'' (Dubois, 1987) *''Rana terrestris'' (Dunayev and Orlova, 1994) *''Rana (Laurasiarana) arvalis'' (Hillis and Wilcox, 2005) |synonyms_ref=<ref name=AMNH />}} The '''Moor Frog''', '''Wolterstorff's Frog''', '''Swedish swamp frog''', '''Siberian frog''', or '''Altai swamp frog''' (''Rana arvalis'') is a [[species]] of [[frog]]. It is part of the [[family (biology)|family]] [[Ranidae]]. It lives in many parts of Europe and Asia, as far north as [[Siberia]]. It is skinny, reddish-brown and [[wikt:semi|semi]]-[[aquatic]] [[amphibian]]s.<ref n