The answer is corrosive health hazard.
Humans gave up razor-sharp claws, fangs, sense and instincts in favor of intelligence. This brain-power has enabled humans to make the ultimate adaptation; that of making the environment adapt to us. We have domesticated crops and livestock, we irrigate, we wear clothes, build shelters, air-condition or heat our homes.
Organizing is the second part of the perception process, in which we sort and categorize information that we perceive based on innate and learned cognitive patterns. Three ways we sort things into patterns are by using proximity, similarity, and difference (Coren, 1980
