Ants of various species can be seen in Costa Rica streaming through the jungle in huge numbers. They can do this by producing pheromones that act as a guide for moving enormous numbers of ants to a specific destination. Basically, they smell the ant in front of them. Very rarely a group of ants gets lost from the main group and they end up following each other in a circle. Eventually they die from exhaustion. You can see the dead ones piling up in the middle.
The moral is- pick your leaders carefully.
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