Mark Gongloff, posting at the ER, thinks he has a handle on the subject. Ha!
He don't know dung!
I've been saving this post from Mental Floss for just such an opportunity!
Six Unexpected Uses For Animal Dung
1. Crocs and Birth Control
2. Elephants and Paper Products
3. Llamas to Fight Pollution
4. Bats to Fight Wars
5. Moose Droppings for Tourists
6. Flying Squirrel Cures
With links to: