Blood Type Evolution
There are still many mysteries about the evolution of blood types that humans have not yet known. Here is story about blood type evolution and how our ancestor took on local diet adaptation.
Starting from the pre-historical evidence, the relics of ancient civilizations, the archeological ruins, all left many questions; Is it true that the blood type of modern humans today is related to their ancestors?
In the last few centuries scientists and anthropologists have begun using biological markers such as blood groups in search of human traces in the past.
Research after study allows a broader understanding of community groups, and how they adapt to climate change, germ mutations, and erratic food supplies. Modern sophisticated equipment produces very accurate evidence of human evolution.
Variations, strengths and weaknesses of each blood group can be seen as part of the ongoing process of humans in the face of changing environmental challenges.
Most of these challenges have involved the digestive and immune systems. Therefore it is not surprising, that many differences between blood groups involve the basic functions of our digestive system.
Immune evolution that lasts for millions of years explains many differences between animals and other species. But the human life span alone provides enough time to adapt to environmental changes.
In addition to environmental adaptation, random marriage is also responsible for the evolution of blood groups.
However, the necessity of ancient humans to continue to migrate forces them to adapt to the local diet.
This change in diet triggers changes in the digestive tract and the immune system. Different foods are metabolized in a unique way by each group.
In general Dr. D’Adamo divides the four groups of blood type evolution and relates them to prehistoric ancestors.
Hunter and Food Collection Era
The first human ancestors were considered living in sub-Saharan Africa, around 170,000 and 50,000 years ago. These ancestors might undergo an omnivorous diet, which is eating raw food, or eating leftovers from predatory animals. However, because humans do not have sharp canines or claws like predatory animals, they may also be prey. Fortunately, early humans had the biggest tool in their bodies, the brain.
Dr. D’Adamo observed that the diet of early human flesh was a driving factor behind the dramatic growth of the human brain. After humans only eat leftovers from other animals, their brains begin to change these habits. They started hunting, even though they were not armed. Expected by experts, this situation began around 100,000 BC.
The Cro-Magnon Man, recognized as the first human ancestor, was around 40,000 BC. This Cro-Magnon maneuver began to develop communication skills and simple hunting tools. They began to hunt in an organized manner, drawing weapons in the form of bones or stones. This great progress then brought people to the top of the food chain, getting rid of other animals. As a skilled and tough hunter, Cro-Magnon humans develop as primates who dare to face other fiercer animals.
Cro-Magnon humans have a modern human body shape such as a taller body, vertical forehead, short eyebrow, smaller face and teeth, and chin. Their skeleton shows large muscles, indicating that they are used to walking long distances and doing heavy activities.
When the Cro-Magnons hunt, the carnivorous diet has become a lifestyle. Under these conditions, blood type O appears, namely when acid production and pepsin are very efficient for digesting meat. In the absence of natural predators (other than themselves), and a guaranteed supply of meat, Cro-Mag-non humans continue to develop physical agility of hunters.
Until around 5,000 BC, most of the hunting animals in Africa were used up. The scarcity of these food sources causes extensive migration in search of new and fertile hunting grounds. The hunters must find food in more distant places and collect in sufficient quantities. War began to occur between hunter groups in order to get food supplies for their groups.
These things, coupled with climate change, encourage early humans to start moving out of Africa. All of these factors combine together into what experts call massive migration in human history. This migration is carried out by the basic population of blood type O, and human ancestors began to spread throughout the continent
exist on planet earth.
Stays and Matching Plants Era
The Paleolithic period of the Cro-Magnon hunters began around 30,000 BC. Agriculture and animal husbandry then change their hunting culture. The ability to process grains and care for livestock allows prehistoric people to forget the lifestyle of their nomadic predecessors. They settled, made communities, set up cities to accommodate an ever larger population. The British historian, V. Gordon Childe, coined the term “Neolithic Revolution” to describe changes from hunter-gatherers and settlers to settled communities and farming.
The Neolithic Period is also an important basis in the distribution of blood groups. An agrarian lifestyle, relatively sedentary creates a big change in diet. This results in mutations of their digestive and immune systems. Many of them become carriers of blood type A. Blood type A variants allow humans to tolerate better grains and other agricultural products.
Blood type A initially appeared in significant numbers in prehistoric Caucasian societies, namely around 25,000 and 15,000 BC, somewhere in West Asia or the Middle East. The genes for group A spread to Western Europe and, especially the Indo-European race.
Nomandic Mutation Era
The gene for blood type B first appeared in significant numbers around 10,000-15,000 BC, in the Himalayan plateau region which is now part of today’s Pakistan and India. Like environmental conditions that gave rise to the emergence of group A, the development of blood type B is a response to environmental changes.
Blood type B seems to respond to climate change better. It is possible that blood type B might be the only blood group with the ability to survive in a harsh environment. Of course, this adaptation then influences the evolution and diet of blood type B.