A rana arvalis during his mating season. Quite fun to watch.

some more from this day:

Enjoy, and if you do, feel free to comment.
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biq is untiefen
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[link] My pictures are generally licenced as creative commons - noncommercial - no derivative.
But if you would like to use them, feel free to contact me via note on dA. I almost always support good ideas.
Great shot~