William Beebe

William Beebe appears briefly as an American naturalist, but his observation of army ants in the Guyana jungle becomes a central illustration of the danger of unbroken imitation. The ants moved in a circle for two days, following one another until most died; Beebe’s encounter makes visible the difference between a functioning collective and a group unable to break from its own pattern.

Identity and Observation

In the early twentieth century, Beebe came upon a group of army ants moving in an immense circle in the Guyana jungle. The circle measured 1,200 feet around, and each ant took two and a half hours to complete a circuit. The procession continued for two days, until most of the ants had dropped dead.

Beebe’s role in the book is that of an observer whose concrete report gives scale and duration to a striking biological phenomenon. The account does not offer a fuller personal biography; its focus is what he witnessed and what that sight reveals about collective behavior.

The Circular Mill

The behavior Beebe saw is known as a circular mill. It forms when army ants become separated from their colony and, having lost their way, follow the ant ahead of them. Each ant’s locally simple response—keep following—reproduces the circle rather than finding an exit. The mill usually ends only when a few ants happen to stray away and the others follow them out.

The episode turns on a stark reversal: the same responsiveness that ordinarily helps a colony function can trap separated ants in a fatal loop. A chance deviation, rather than a command from above, is what can interrupt the march. In Beebe’s account, the circle is both a physical route and a pattern of behavior that sustains itself until most of its participants die.

Significance in the Argument

The book contrasts the ants’ ordinary collective competence with their helplessness in the mill. An ant colony can find food, complete its work, and reproduce without any one ant directing the others; yet the behavior that serves the colony can become destructive when an ant cannot act independently of its neighbors. Beebe’s observation therefore anchors the book’s argument that coordination and imitation are not sufficient: collective success also depends on the possibility of independent judgment.

The ants provide a deliberate contrast with human decision-makers. Independence, as the book frames it, does not mean isolation; it means relative freedom from others’ influence, so that opinions can remain one’s own. Beebe’s scene supplies the image behind that distinction: a group can keep moving together, even in a circle, when no one breaks from the behavior of those directly ahead.