For the first time this phenomenon was thoroughly described in the 1944th year by the American zoophysiologist Theodore Shnereyle, who gave him the name death mill, since the ants continue their run until they drop dead and the carousel of death continues to rotate until the participants are completely exhausted, leaving behind them the hordes of dead ants.
One of his most impressive examples was observed in Guyana in 1921 by the American naturalist William Bibe. ')
He described the ant-turn that made a circle with a diameter of about 120 meters and each of the ants made a full cycle in 2.5 hours. The ant circle existed for 2 days, dotting the ground under its dead bodies, until a small group of working ants accidentally separated from the general movement and took the survivors with them ... (According to materials www.antclub.org )
What do you think, what does explain this phenomenon? :)