Top 10 Most Incredible Natural Phenomena Around The World
9. Namibia’s Mysterious Fairy Circles
Fairy circles are circular patches of land, barren of plants, though often encircled by a ring of stimulated growth of grass. They typically appear in the arid grasslands of the western part of Southern Africa. Fairy circles are particularly common in Namibia, but also occur in parts of Angola and South Africa.
There has long been debate about the causes of the circles. The investigation and development of theories have included numerous theories both mundane and supernatural. One favoured assumption is that the sand termite, Psammotermes allocerus is responsible, but the range of the phenomena is much wider than that of the termite species, and details of the effects vary, so to ascribe all circles to any such single cause would be unrealistic.