An unusual feeding behavior was observed in a small herd of African elephants at the Safari Park, Ramat Gan, Israel. An elephant was observed to insert her trunk into the rectum of other elephants in order to obtain undigested food. This behavior was studied in relation to the hierarchy of the elephants within the herd. Half a year of observation led us to conclude that the elephant higher in hierarchical level would insert her trunk into the rectum of elephants lower in the hierarchy. The reverse was not observed.
Sever, Z. (1982). An Unusual Method of Feeding Behavior in Captive African Elephants. Elephant, 2(1), 140-143. Doi: 10.22237/elephant/1521731911