Do Ants Bury Their Dead?

Ants live in an orderly society, and when one dies, its body releases oleic acid, which signals the rest of the colony that death has occurred. Almost immediately, this triggers the other ants into action: The ants gather up their dead comrades and carry the bodies outside the nest, placing them in a pile called a midden. They do this to protect the colony, and their queen, from any type of contamination.

Disposing of the dead:

  • Ants aren’t alone in this type of behavior. Bees, for example, will push their dead right out of the hive.
  • If ants are a problem, you don’t have to use strong chemicals. A mixture of Borax, sugar, and water sprayed around the foundation of your house will deter them.
  • You could also scatter some cinnamon around places where you see ants -- they hate cinnamon.

Frequently Asked Questions

Do ants actually bury their dead?

Yes, ants do engage in behaviors that resemble burying their dead. This is part of a sanitation protocol to prevent disease spread within the colony. Ants may carry their deceased away from the nest and deposit them in a specific area known as an ant graveyard.

Why do ants remove dead ants from their colony?

Ants remove dead members from their colony to maintain hygiene and prevent the spread of pathogens. According to research, ants can detect antimicrobial chemical signals from decomposing bodies, prompting them to remove and isolate these potential sources of infection to protect the health of the colony.

What is an ant graveyard?

An ant graveyard is a designated area where ants deposit their dead. This site is typically located at a safe distance from the colony to minimize the risk of contamination. The practice of creating such graveyards is a testament to the ants' complex social behavior and their instinct to protect the living members of their community.

How do ants recognize their dead?

Ants recognize their dead through chemical cues. When an ant dies, its body starts to emit oleic acid and other decomposition-related chemicals. Living ants detect these signals and respond by carrying the deceased away. This recognition system is crucial for colony hygiene and survival.

Is the behavior of burying the dead unique to ants?

No, the behavior of dealing with the dead is not unique to ants. Many social insects, including bees and termites, have developed methods to manage their dead for the health of the colony. However, ants are particularly noted for their efficient and systematic approach to this task.

Can this behavior be observed in all ant species?

While not all ant species may exhibit the exact behavior of creating graveyards, many do show some form of necrophoretic behavior, which is the removal of dead individuals from the nest. The specific methods and practices can vary widely among the thousands of ant species, reflecting their diverse ecological adaptations and social structures.

More Info: Indiana Public Media

Discussion Comments

anon1001648

Do they put injured ants in the pile too? There is a pile of brown moving things on my sidewalk.

anon996606

I hate ants! Cinnamon does work though. I started using it around the kitchen where there was a good hole back where we used to have a lot of ants and they are mostly gone now.

Put in areas where you think they come from, link cracks, around areas (like underneath kitchen or dishwasher areas or cabinets or inside bathroom) where you think they are coming from and it helps to keep them away.

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