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Biology

Chemoreception and Trail-Following Behavior in Ant Colonies

Quick fact

A single ant can detect a trail pheromone at concentrations as low as a few molecules per cubic centimeter of air, and a colony’s trail network can extend over 100 meters from the nest, showcasing the incredible sensitivity and scalability of chemical communication.

Why this is interesting

Ever watched a line of ants marching to a crumb and wondered how they know exactly where to go? It’s not a map—it’s a chemical trail they lay and follow with their noses.