Broadly, instead of using simple supply and demand, it explains changes in the demand for one asset (a small silver coin, say) relative to another (a large coin) in terms of changes in the rate of return that the holder of the assets can expect from each.
Cohesion occurs only when they come from the same area, so the Majete lions were carefully picked and tranquilized in South Africa, and slowly introduced to one another in a boma (enclosure) for a month before making their great journey by plane to Majete.
The US Army-funded research seems promising but is obviously still in its infancy -- one of the designs the researchers demonstrated is half the size of a penny but pumps out 120dB of noise (about the same as a siren), while another bumped out over 135dB, (which is roughly equivalent to a jackhammer).