Ant brains are hundreds of thousands of times smaller than ours, rendering them incapable of any significant individual computing power. Instead, they employ an intricate hive mind communication system, says New Jersey Institute of Technology entomologist Simon Garnier. The bugs emit chemicals called pheromones when they encounter a resource, such as food or a nesting site. Hundreds of fellow ants follow the smell, leading to an organized army of satiated critters or the construction of a giant (relatively speaking) anthill.
