What's the poop?

Ever wonder what happens to all that poop at the zoo??? Well, here's what happens to it at Seattle's Woodland Park Zoo:

Some interesting facts about "Zoo Doo":
1- Zoo Doo is made from the manures of 26 different non-primate herbivores

2- Number of pounds an elephant poops each day: 80

3- Zoo Doo produced annual: 409,100 pounds (900 cubic yards)