Mi-Lu was one of two fawns born to a Père David's deer at Knowsley Safari Park in the United Kingdom, but his mother showed interest only in his twin. Abandoned by his mother, the fawn was found cold and alone in a ditch by park staff. But with the help of the park curator's dogs Geoffrey, a golden retriever, and Kipper, a lurcher, staff were able to nurse Mi-Lu back to health.
(Père David's deer, originally from China, are a critically endangered species; at one time there were only 18 left in the world!)
Here's a photo of Mi-Lu with one of his adoptive parents: