There is a German children's song named "Fuchs du hast die Gans gestohlen" about a fox stealing a goose. According to Wikipedia the melody comes from another song named "Wer eine Gans gestohlen hat" which is about geese but not about foxes.
There is a Japanese children's song named 「こぎつねこんこん」 (judging by the YouTube title) with a very similar melody that is also about foxes. I found a Wikipedia article that may or may not be about the song. (I don't speak Japanese.)
What is the relationship between the two versions?