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People here on Earth haven’t been around that long. Life on Earth circling the Sun wandered here for millions of years before we appeared. Compared to the age of the universe, even those millions of years are just small specks.
It’s hard to imagine any other life around us. Nevertheless, the probability that we are not alone in the universe is about as great as the number of stars we see in the night sky.
Before we look at the stars, let’s examine the phenomenon that people currently call “alien” life, living among us right now.
Rh-negative: What does it mean?
Before we continue further, we want you to know that we are not talking about little green men from Mars. The one we are talking about probably resembles you or me.
The ones we are talking about are people, more precisely people whose blood type is Rh negative.
Our blood groups refer to markers that are found on the surface of our red blood cells. Red blood cells in the blood can be A, B, AB or O.
Red blood cells also have on their surface a protein called Rh. Human blood can thus be either Rh positive, which means that you have the Rh protein.
Or you can be Rh negative, which means you do not have the Rh protein. So your blood group, along with the Rh positive or Rh negative factor, determine your final blood type.
But why should we assume that people with Rh negative are from another world?
Theories about extraterrestrials
The human Rh- factor is shrouded in mystery mainly because this blood type occurs very rarely, in approximately only 15% of the population.
Let’s say what makes this fact so mysterious. It’s the question: how did these people come to have Rh-?
The laws of genetics state that the characteristics we have can only be obtained by inheritance from our ancestors, unless genetic mutations are involved.
So, if human beings and apes come from the same ancestor, it should be reflected in our blood. But while all apes have Rh+, not all humans have Rh+.
The fact is that the largest concentration of people who have Rh- live in the Basque region in Spain; 30% of the population has Rh negative.
Where do these mysterious people come from?
So where does this group of people with Rh negative blood come from? While their origin is still a mystery, scientists believe they first appeared 35,000 years ago.
Unfortunately we do not know much about Rh- blood. However, there are things that are known to us. One of them is that if a woman is Rh- and is pregnant and expecting a child with Rh+, her body can perceive her child as a foreign body.
Rh+ blood and Rh- blood do not mix, so the mother’s body produces antibodies that try to fight the perceived threat. Fortunately, with the help of modern medicine there is a treatment that can help mothers prevent this.
Another potential advantage that people with Rh- have compared to other people is that they may have the ability to resist certain diseases.
It is assumed that people with Rh- may be resistant to some of the effects of the parasite Toxoplasma. This parasite is very sophisticated.
It can invade the human body and damage the brain, especially in infants. There is much we do not know about Rh- and it is possible that there are other advantages that it has bestowed upon its carriers.
