Undigested feed and precipitated uric acid are excreted together in domesti
c turkeys, whereas in ostriches, liquid urine then discrete fecal boli are
excreted in rapid succession. Gross anatomy and physiology of the cloacal s
tructures of these two species also differ, providing an explanation for th
e differences in their waste products. J. Exp. Zool. 283:478-479, 1999. (C)
1999 Wiley-Liss, Inc.