by Dr Dan Waniek, MD
Copyright © 2006 danwaniek.org
Why should such a peculiar homeostatic mechanism exist ?
Nature develops specific structures to solve specific local problems e. g. different eye systems in fish, insects and mammals. The more diversified these structures are, the more adaptive utilities arise for the same structure.
A “ trivial ” example is the brain, originally limited to some relations between the individual representative of a simple species and its habitat, evolving then to support self-consciousness and creative behavior.
So, an already existing living structure may capture, by its intrinsic possibilities, more external information and make it significant for a higher and finer homeostatic mechanism. This is a kind of useful, effective redundancy that evolution provides for the species when they face viability problems. It may happen because of local environmental presure and also because their own increasing complexity.