"Daniel I. Goldman, a physicist at the Georgia Institute of Technology, and
his colleagues, found that the secret to efficient tunnel digging by fire
ants was that 30 percent of the ants did 70 percent of the work. They
reported their fable-shaking finding in the journal Science."
[permaculture] The Secret to Ant Efficiency Is Idleness - The New York Times,
Lawrence London, 08/18/2018