A common belief is that a termite or ant colony without its queen is doomed to extinction within weeks, as the queen is typically the sole reproductive individual responsible for laying eggs and ensuring the colony’s growth. However, a surprising discovery in an old military bunker in western Poland has challenged this belief. Nearly a million wood ants have survived for years without a queen, without males, and without any offspring, trapped in total darkness under the concrete structure. This case, first discovered in 2013 by Polish researchers, has raised intriguing questions about how animal societies can persist even without traditional means of reproduction.
The story began when scientists from the Polish Academy of Sciences were conducting a routine census of bats in an abandoned Soviet-era nuclear weapons storage facility in Templewo. While exploring the underground galleries, they stumbled upon an astonishing sight: a vast number of wood ants moving through a space filled with millions of dead bodies. The environment was completely sealed, with no access to food or light, and yet the ants had survived for years. This discovery was puzzling, as the conditions should have made survival nearly impossible.
Further investigation revealed that the ants had fallen through a faulty ventilation duct from a mother colony located above the bunker. Over time, the rusted metal had created a one-way trap, causing thousands of workers to fall each year. The trapped ants, unable to return, had developed a grim survival strategy: cannibalism. Researchers found evidence of mandible marks on dead ants’ bodies, indicating that the survivors were feeding on their fallen comrades to survive the lack of food. However, cannibalism alone could not explain the ants’ long-term survival. The continuous fall of new workers from the surface colony provided a crucial external reinforcement, allowing the underground population to persist despite the harsh conditions.
In 2016, researchers took action by installing a wooden bridge that allowed the trapped ants to climb back to the surface. Within months, nearly all of them successfully re-integrated with their original colony, without any signs of aggression. This case highlights that survival in insect societies can depend not only on internal reproduction but also on external support and adaptability. The ants’ ability to endure extreme conditions and maintain cohesion offers a unique insight into the resilience of animal societies. It also prompts us to consider how many other groups, whether animal or human, might be surviving not just on their own resources, but on hidden connections to the outside world.
Ant Colony Survives Years Without Queen, Males or Brood in Polish Bunker
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