Solvin Zankl / Moor frog (Rana arvalis) group of males in water, Germany
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Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
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Artur Tabor / Moor frogs and frogspawn (Rana arvalis) Poland
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Sandra Bartocha / Moor Frog (Rana arvalis) Mecklenburg-Vorpommern, Germany, April
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Sandra Bartocha / Moor Frogs (Rana arvalis) gathered in pond to breed, with males in blue breeding colours. Crack Willow (Salix fragilis) trees grwoing along the waters edge, Germany, April
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Sandra Bartocha / Moor Frog (Rana arvalis) group with males in breeding colouration with Crack Willow (Salix fragilis) trees at the waters edge, Germany, April
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Sandra Bartocha / Moor Frog (Rana arvalis) males, in breeding coloration, Germany, April
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Sandra Bartocha / Moor Frog (Rana arvalis) on leaves, Germany, April
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Sandra Bartocha / Moor Frog (Rana arvalis) group in water, with colourful reflections, Germany, April
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Sandra Bartocha / Moor Frog (Rana arvalis) in water, Germany, April
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Bert Willaert / Portrait of pair of Moor Frogs (Rana arvalis) in amplexus. Belgium, March.
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Konstantin Mikhailov / Blue / Moor frog (Rana arvalis) Central Russia, April 2007
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Konstantin Mikhailov / Blue / Moor frog (Rana arvalis) pair, Central Russia, April 2007
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Konstantin Mikhailov / Blue / Moor frog (Rana arvalis) Central Russia, April 2007
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Konstantin Mikhailov / Blue / Moor frog (Rana arvalis) Central Russia, April 2007
Solvin Zankl / Moor frog (Rana arvalis) male in water, Germany
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Solvin Zankl / Moor frog (Rana arvalis) male in water, Germany
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Solvin Zankl / Moor frog (Rana arvalis) male in water, Germany
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Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
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Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
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Dietmar Nill / Moor frogs (Rana arvalis) mating in a pond, Germany (the male is blue)
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Robin Chittenden / Moor frog {Rana arvalis} Austria
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Jean E. Roche / Moor frog {Rana arvalis} Poland
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Kerstin Hinze / Male Moor frog (Rana arvalis) in water, Mecklenburg-Vorpommern, Germany
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Kerstin Hinze / Moor frog (Rana arvalis) pair in water, males are blue during the spring in mating season, near Waren an der Mueritz, Mecklenburg-Vorpommern, Germany
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Kerstin Hinze / Male Moor frogs (Rana arvalis) around female, males are blue during spring in the mating season, near Waren an der Mueritz, Mecklenburg-Vorpommern, Germany
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Kerstin Hinze / Male Moor Frog (Rana arvalis), males are blue during the spring in the mating season, Mecklenburg-Vorpommern, Germany
