Evolution by Perception
As life is an ecological exercise evolution often proceeds upon perception. This creates opportunities for deception.
Perception is often aimed at satisfying desire. When choices are available, individual preference plays a part.
In that multiple preferences are often entwined, Nature may produce tantalizing approximations which are not wholly satisfactory. The craft of evolutionary enticement is often an exercise in compromise.
Organisms perceive stimuli relatively rather than quantitatively. This leads to simple preferences when a single factor is involved. But a confluence of factors commonly leads to compromise based upon prioritized preference.