So easy to recognize these five brothers from Turkey. They're always running a crawl. Not the knee, but two feet and two hands. Like the early humans.
They become the world's attention after the BBC television network broadcast a documentary titled 'The Family That Walks On All Fours', five years ago. The film also shows how they survive in modern society.
banner family walks Family Mystery Walk Crawl
They spent most of his life by sitting on the floor outside their home, located in a remote village. However, the brother they had to travel outside the village and involved interaction with modern humans.
When the documentary aired, five siblings, aged 18 to 34 years. Those who are descendants of Kurdish tribesmen in Turkey, seen as free to move with two hands and the soles of his feet. While facing the front of his face looked.
Mystery Family 21 Running Crawling
They could not stand upright on two legs. When pressed, they will stand with the knees bent and head up. Two female and one male of five siblings were completely unable to walk on two legs. While the other two are still able to walk on two legs despite stumbling.
Even though it looks strange, the existence of this family to contribute to research on human evolution from running to crawling to walking upright. The scientists believe that their condition can provide different and more detailed explanation of the earlier theories, related to human evolution.
The results showed that the genetic abnormalities that make them run a crawl. This can provide valuable information about how humans evolved and early humans with four legs evolved into human beings with two legs.
"It is really amazing as an example that shows the development of human disorders. But their purpose of life is how to survive in the modern world, "said Professor Nicholas Humphrey, evolutionary psychologist at the London School of Economics, as quoted by the Daily Mail.
Mystery Family 11 Running Crawling
Professor who has visited the family twice said that five children had mental retardation. Their parents are believed to provide a unique combination of genes that result in limitations.
Some researchers argue, the genetic error has triggered the development of early humans they like or 'backward evolution'. Whereas other researchers believe it is caused by brain damage that allows processes running does not work.
They prefer to walk with their hands than to walk with steps of their bodies like gorillas or chimpanzees. The researchers believe this may be the way early humans walked to protect their fingers with a smoother motion.
Professor Nicholas Humphrey said that the family do is go back to the instinctive behavior encoded deep within the brain, and is not ignored during evolution.
"I do not think they are destined to be quadrupeds, but they have unique genes that make them like this," he said.
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