The conundrum of the behavioral sciences is that they are not exact sciences in the same sense as physics or mathematics. Behavior is like the spectrum of light: it is as difficult to say when yellow turns into orange as when one behavior turns into another. It is a continuum of quantity, perceptible throughout its duration, describable only when quantity turns into quality.
Friendly, insecure, pacifying, submissive and fearful behaviors are a continuum of quantity, as are content, self-confident, assertive, dominant and aggressive behaviors. The distinction between any two behaviors is a matter of function; the borderline separating one category from the other is a matter of observational skill, contextual parameters, and convention; the way we understand it all is a matter of definition.
Our brain likes to tidy up its stored information in small boxes, but once in a while, I like to turn them upside down. It’s good mental exercise.
© Illustration by Roger Abrantes with drawings from Alice Rasmussen.
If animal behavior fascinates you, you will enjoy "Ethology—The Study of Animal Behavior in the Natural Environment," the book and course by ethologist Roger Abrantes.