With this in mind, we've adapted the basic Blood Type Diets to reflect secretor-based variations. We are accustomed to picturing the course of human evolution as a straight line, with markers along the way that identify significant shifts. Your Type, blood type evolution was described in a purposely linear manner, in an effort to communicate the basic idea. However, we know that the evolutionary process is more loop than line, more circular than linear. When we talk of Type O being first, Type A second, followed by Type B, then Type AB, we're not describing a seamless march from hunter to farmer to nomad and beyond.
Evolution occurs on an invisible landscape, the actual process spanning eons.
The refinements in our species and the many subspecies are the hammer of environmental demands arriving with the force of small taps rather than with thundering blows. These refinements have but one purpose - our survival. Today, as we arrive at a new century, we have the understanding and the tools to maximize our capacity for survival, using the genetic material that nature has supplied. All rights reserved. This excerpt, or any parts thereof, may not be reproduced in any form without permission.