They are found in no less than 15 countries and on three different continents. Their origin begins at be known.
They have intrigued scientists for several decades and the answer may be very close. Even their name arouses curiosity. : the "fairy circles" as they were created nicknamed, were reported on several continents in recent years and the latest investigations, which required further investigation. the precious help of satellites, revealed a much more important phenomenon than previously assumed.
From Namibia to In Australia, these little-known plant formations were discovered in Australia. glimpses from space. These strange phenomena can take the appearance of circles or hexagons. To list them and better study them, a team of Spanish researchers has created the first world atlas aimed at record the appearance of these "fairy circles". The verdict surprised them since no less than 263 fairy circle zones were destroyed. discoveries. Surprise, they are found in no less than 15 countries and on three different continents, from Africa to China. Oceania via Asia.
Far from Namibia where they were Discovered for the first time, these mysterious circles also extend, for example, to the Sahara, the Horn of Africa, Madagascar, in the Australian desert but also in South and West Asia. Everywhere, the same landscape intrigues scientists: a cluster of almost perfect circles and hexagons. Each circle is made up of thin vegetation. In their center as around them, the landscape remains dry and lunar before being followed a few meters further by other circles. These geometric shapes can reach from 2 to 100 cm. more than 10 meters in diameter.
The latest discoveries have made it possible to identify common points between the regions which shelter them. each time from arid regions, with sandy soil, irregular precipitation and a very rare presence of water. The basement of all these areas has been renovated. also studied. We find there; also one thing in common: a low nutrient content. But that doesn't solve the main question. How are these circles formed?
The question of the origin of these circles actually remains. controversial. Meteorite shower, presence of gas or radioactivity natural… These numerous trails have already been developed. Summer discarded. Conversely, some researchers assure that termites play a decisive role in their creation and point out that each of the areas identified is home to known populations of termites.
Other researchers reject this hypothesis and call it a biological phenomenon with self-organization and defense mechanisms. The circles would form or disappear depending on the level of precipitation. The new discoveries have not yet decided. the debate. However, one thing is certain: these fairy circles play a key role in the world. in arid ecosystems by increasing agricultural productivity. of vegetation in these inhospitable areas.