This frog I found in a little pool near my house. I think it is an frog of the /Rana kl. esculenta/ species, but it's not very easy to determine, since this frog type is a hybrid between the /Rana lessonae/ (Pool Frog/Kleine groene kikker) and the /Rana ridibunda/ (March Frog/Groene Kikker), so it shows characters of both. If you can determine what species it is precisely please let me know.