REASON FOR THE ANTS GOING IN QUEAUE ONE AFTER ANOTHER:
While identifying the food, and carrying a portion of the food to its cell, it spreads one kind of chemical called as ‘pheromone’ all through the way for identifying the food. The other ants, reach the food, with the help of the smell of the ‘pheromone’. While returning to the cell with the food, the other ant also spits the ‘pheromone’ and confirms the way. Thus the other ants confirm the way; more ants reach the food through the way, easily. This action looks to us as if the ants go in line and in queue.