Why US makes wars: This scientific research is to explain that Earth's Humans, all, are not the same.

This scientific research is to explain that Earth's Humans, all, are not the same in its DNA configuration. There is DNA phenotype and DNA genotype depending on the variety of a human. Human Varieties are often seen as "races", be it known that there is only one "race" in Humans, and it is itself the Human Race …it is its varieties that are wrongly called "races"

For instance, withing the black skin variety, there are very inherited smart and intelligent people as well as dumb inherited people; the same can be said of the white skin ones, the yellow and brown skin ones and any others.

What makes the difference is the inheritance of DNA brought into the new generation of humans of the 21st. Century and centuries below up to decades of thousands of years ago when the Neanderthal Man and Homo sapiens (a man too) mixed with Homo sapiens but before, it mixed with the Homo erectus and before, with others such as the Homo habilis, Australopithecus, and Homo erectus; it was a slow and continued mixing ...cuz they were of the same species, different varieties. There are a lot more of mixtures with the Cro-Magnon and many other varieties as the Grzimek’s Tier Leben.

In 1987, I created a new type of Homo sapiens that fit my description here: the Homo sapiens-sapient; this is most of the actual Homo sapiens but, because of the new evolving tech, they are evolving into a much advance culture capable to use AI as a help to create things in the new era that started around the end of the 20th. Century: Artificial Intelligent computers, human had mechanical computers widely used in WWW2 by England, which is still going further to its Artificial Intelligence algorithm, known as Artificial Intelligent or A.I. This are today’s people that depend mostly on the GPS, calculators, graphic designs and medical devices to give a medical diagnosis that otherwise would not be possible to treat a human or animal illness.

…as of today, Homo sapiens and Homo sapiens sapient are the same, except that the last one is specializing much more in much advance science and depending on it, building an advance society. Homo sapiens don't need a too much advanced science but knowledge to use these new tools, fabricate them and experiment with them to create advance work, for example: construction of a pair of scissors, assembling the motor of a vehicle or repairing it and things like that using advance AI robots, such as self-driving cars, intelligent bombs (IB) and humanoids (human-like robots) that will overpass human intelligence, just to mention a few of the lot. When a Homo sapiens learns the science of creating devices or inventing it using computer designs it turns into a Homo sapiens sapient and AI will be integrated into its self-existence, for it is a learnt knowledge+ (the AI side) that gives them the facilitation to invent things like a rocket to travel into outer space which racket is much more strong or stronger than traditional fuel-mechanical consuming rockets as is in the case of the Orion combustion rockets that uses nuclear energy, those inventors are called: scientist, not mechanics, really they are mechanical ones, next will be the one using electron proportion, that is the AI rockets. A scientist uses scientific calculation to create things that a mechanic ensemble, yet the mechanic could be a scientist too. They are the new Homo-Sapiens sapient, a learnt homo-Sapience sapient, cuz they have their inventions attached to their bodies, chips. These are the new humans. Homo-Sapiens sapient. If not, Humanoids will control them all …see that Homo sapiens and Homo sapiens sapient are the same, but the last with AI incrusted in them.

Here I want to demonstrate that some Homo sapiens can't learn advance science due to the development of their brains that contains much more of different type of Hominid DNA than Homo sapiens which DNA varies in just one or a few genes of its amino acids that make its A, G, T and others: —adenine, guanine, cytosine, and thymine—

Humans are not built on the same sequences on its DNA at the gene level at its brain DNA, only there, which is inherited at its genes genotype, yet its phenotype are the same with a variant due to the region it been most of its natural formation: habitat. Therefore, we have humans’ variants that look much close to other animals as Homo erectus and Neanderthals or the Gracile type that existed thousands of years ago. They all mixed to be what we now know as Homo sapiens. Thousands of years ago, one group ate the other, it caused wars amongst them, until just one was preserved but with the mixture of their genes, 'cause they mate one to the other too. All their genes were interchanged in different proportions …still are interchanging but at a slower rate.

See:

Neanderthal were much tall and robust than Homo sapiens sapient (they were humans too) with a wide body structure. Note: the same species, be a known that different species cannot interbreed, let us say: a monkey and a human, a monkey is a race, a human a different race. all humans interbreed amongst themselves cuz they are the same race.

Avoiding here scientific terminologies, using common words for Neanderthal skeleton,

Notice the knee are much wide separated from the body center line, an imaginary line that divide the body in two halves ...in humans they are much closer.

Notice the pelvis, its size and the way it is mounted on the almost parallel lower extremities connected to the pelvis in a nearby flat shaft compared to humans below (pelvis-extremities in reference to humans).

From Bing images.