Zoo spokeswoman Susan O'Cain says one cubic yard of the manure will be available for $43 a load. The manure sells out quickly, and each order is limited to two loads.
Zoo animals produce about 1,500 pounds of manure every day. For those interested in small amounts, pint-size and two-gallon buckets are placed at zoo entrances throughout the year.
O'Cain says the poop will be available for pickup on March 23. Orders may be placed through www.riverbanks.org.