Why Fire Ants Build Entire Colonies as Waterproof Rafts: An Unbelievable Adaptation Explained

The red imported fire ants, which have the scientific name Solenopsis invicta, have discovered an incredible way of surviving floods.

When the ants feel that floods are coming because of the rain, thousands of the ants will link themselves together using their jaws and legs and create a raft that will keep the queen and baby ants safe in the middle. This raft will help the ants float on water for days and even weeks.

Scientists have observed the red fire ants in different studies featured in Scientific American and National Geographic. They have noticed that the red fire ants have the ability to link themselves together in a short period.


In fact, within two minutes, the red fire ants have the ability to create a flat and round raft that is strong and waterproof.

The way the red fire ants have been able to work together shows that they have the ability to work in teams.

How Their Bodies and Behavior Make Rafts Work

These rafts are effective due to the bodies and behavior of the ants.

The fire ants have a shell that prevents water from penetrating and has air bubbles trapped between the bodies of the ants, which helps them float.

The ants are always moving around when they are on the raft. If the water pushes the raft or if it hits something, the ants change their places and make the raft stable. This proves that the raft is not just floating in the water; it is a very flexible body of living creatures.

The bodies of the small ants are flexible, and that is why the raft floats steadily in the water.

The behavior of the ants has been compared to the blocks of the robot, where the behavior of the ants is used in the design of the blocks of the robot, as described in Nature.

Beyond Rafts: Behavior, Ecology, and Human Impact

Fire ants are not just rafting; they are also building living bridges and ladders over flooded and rough terrain. The different behaviors shown by fire ants while rafting are an indication of how flexible their teamwork skills are.

In terms of their impact on the ecosystem, the rafting behavior shown by fire ants enables them to colonize different habitats and become invasive species that outcompete native species, as cited by the U.S. Fish and Wildlife Service.

Fire ants are powerful and aggressive insects due to their capability to spread over water by rafting. The capability is also applicable to humans.

Fire ants rafting over water is a health hazard during floods since they are concentrated in large numbers and sting humans, leading to painful responses and severe allergies, according to ScienceDirect research findings.


Not only is the various behavior of the fire ants while rafting significant from a biological standpoint, but it is also significant from the standpoint of how they can help us stay safe and overcome various dangers in the event of flooding.

The floating rafts of the fire ants show us the importance of the physical form of the fire ants, their actions, and evolution in helping them survive in harsh environments.

The ability of the fire ants to work together, adapt to the situation, and repel the water with their physical forms helps them survive in harsh environments. At the same time, most other insects would perish in the event of flooding.

The behavior of the fire ants is not only incredible in the natural world, but it also allows us to think of new technology that can be developed with the help of robots that can work together in parts.

The formation of the entire colony of the fire ants into a floating raft in the event of a harsh environment shows us the importance of working together, bouncing back from adversity, and adapting to the situation in the natural world.