Ants communicate by laying down tracks of pheromones - others can follow the scent. many go out, find food and come back. Others follow their track. The food with shortest distance will have the most ants following it and laying down pheromones; others sense its heavily trafficked.

Bees dance telling the angle to the food source, and the length of the dance tells distance.

Locusts begin to swarm when the population increases. It begins a fury to find food. The begin to bump into each other and will cannibalize others. (Akin to mobs trampling people)