supernormal stimulus, n.Definitions

A Supernormal stimulus (n.) beats ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the real thing: a plover will abandon its own eggs for larger, sharper-speckled ones, artificial or foreign.