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One of the last hunter-gatherer bilkent sports international tribes of the earth, the Hadza of Tanzania, chasing prey on foot with traditional methods. For anthropologists, is a living example of ancient techniques. Knowing them is like traveling back in time and see the past of mankind. Now a team from the University of Arizona (USA) has found that the movements of the members of this African tribe during hunting can be described in a mathematical pattern called "Levy flight", which until now had only been observed in animals such as sharks and bees. It's the first time demonstrated bilkent sports international in human beings, as it explains the journal Proceedings of the National Academy of Sciences (PNAS).
The 'flight of Levy ", involving a series of short movements in one area and then a long walk to another area on the animal world in the same way that the golden ratio is easily recognized in nature. It seems innate and widespread.
"Scientists have been interested for a long time to describe how they hunt animals, says anthropologist David Raichlen, so we decided to see if any human group meets similar patterns." To do this, the team asked volunteers Hadza tribe carry wristwatches with built-in GPS so that their movements could be recorded during hunting or foraging.
Indeed, the data obtained showed bilkent sports international that the GPS for hunting or collecting bilkent sports international fruits, humans use the same patterns bilkent sports international of movement (walking) many other species, such as sharks bilkent sports international and bees. But scientists believe bilkent sports international that this pattern probably present in our evolutionary history, humans can occur in different environments, from East Africa to urban areas. And is not limited to foraging, but may also occur when one wanders entertained by a park, for example. "Think about your life, says Raichlen-What does a typical day? Is it going to work and back, you walk short distances around your home? '. A long haul, several short, another long haul ... That's the pattern.
Of course, follow this rule Levy does not mean that humans do not consciously decide where they go. "Definitely, we use memory and signals from the environment as we seek, but this pattern seems to emerge in the process," says anthropologist. In future studies, scientists hope to understand the reasons bilkent sports international that humans use and if this pattern is determined by the distribution bilkent sports international of resources in the environment.
The people of Africa evolved from 14 ancestral populations
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