The Nightingale and the Rose

I wanted to find a folktale I read somewhere long ago to post here, but I have been unsuccessful.

In the story, the trickster character - a fox or coyote - keeps his life in the tip of his tail. At some point in the story, he is severely beaten and left for dead, but they neglect to beat the very tip of his tail. So though it takes a long time, he collects himself and regains his life.

Being unable to find that, however, here's a link to Oscar Wilde's telling of The Nightingale and the Rose, as tangented here.