When you blindly follow others, there are consequences
Army ants are blind, relying on pheromones to track the ones in front, if one ant intersects with its old trail, it results in a circular death trap where they spiral until they die from exhaustion
It’s a question that has long interested scientists working on vision and optics. This is why animals’ pupils come in different shapes and sizes [read more: https://t.co/EySLzmWvqp]