When I was a kid, I saw a large number of ants moving in an endless circle. At the time, I didn’t know anything about the phenomenon. Years later, my biology teacher told me army ants are blind, so they navigate by following the scent of a pheromone trail. If they lose the scent, they begin following one another in a circle. Eventually, they will die of exhaustion.
ants march mindlessly
in never ending circles