Have you ever heard about "The Ant Death Spiral"? A fascinating NPR article describes this phenomenon. A particular species of army ant is utterly blind, so they get about by sniffing trails left by the ants in front of them. They, in turn, leave chemical trails of their own.

But, as the article notes, "the system works smoothly when everybody's going in a straight line in one direction. But when the lead ants start to loop, bad things can happen …. If the ant-in-front loops and intersects with its old trail, the whole crowd then turns in on itself and everybody gets caught in the endless circle." Another researcher wrote, “this circle is commonly known as a ‘death spiral’ because the ants might eventually die of exhaustion. It has been reproduced in laboratories and in ant colony simulations.”

Possible Preaching Angle:

Theodore C. Schneirla, the scientist who first observed this behavior, was quick to point out "that ants get stuck in ways that we humans never do." I'm not so sure Schneirla is right about that.