Amoebas not only divide, they also blend. When it's all over there is one amoeba where there were two. Amoebas blend apparently because they enjoy blending for its own sake. The amoeba often frequents laboratories. You'll find quite a number of amoebas at Yale, Princeton, and Harvard.

How to Get from January to December - March 7 (p. 53), Henry Holt & Company. 1951