Assumed to be 27,000 years old how? Assumed to be a wolly mammoth how? Babies of what? Why would it be a "grave"??
Did they believe in God 27,000 years ago and bury the dead in graves?
Carbon dating? LMAO!
Belief in the supernatual isn't a requirement for burial.
I'm just trying to figure out what it is that you're laughing at. Don't you think that they can pretty well identify the bone of a mammoth? Let's see...Austria...that would make them babies of whatever humans were living in Austria at that time? Seems logical. Why wouldn't it be a grave? You don't have to be a Christian or a Jew to bury your dead lovingly.