A zoo in southern Michigan is selling a composted mixture of manure produced by exotic animals.
Binder Park Zoo in Battle Creek is hosting a Zoo Doo event.
Horticulturist Frank Cummins said the zoo has compost available from herbivores that will sell at 25 US dollars a load to zoo members and 30 US dollars for non-members. He says the price is a good deal, since cow manure can sell for around two or three US dollars a bag.