Can Ants Live Without Oxygen?
Contents
On this site, I usually write about big animals like lions, tigers, dogs and cats. Today, I'm covering something much smaller: ants.
Ants live almost everywhere on land, from forests to kitchens. They play a big role in ecosystems by moving soil, spreading seeds and breaking down dead plant and animal matter.
So, can ants live without oxygen? No. Ants need oxygen like almost every other animal. They don't have lungs, though. Air enters through small openings in their body wall called spiracles and travels through a network of air tubes to their cells. Ants can close their spiracles for a while, which helps them survive short periods underwater.
Below, I explain how ants breathe and answer a few related questions.
How Do Ants Breathe?
Like other insects, ants breathe through a tracheal system. According to NC State's general entomology course, air enters through valve-like spiracles along the thorax and abdomen, usually one pair per body segment.
From the spiracles, air moves through branching tubes called tracheae that reach every part of the body. Oxygen is delivered straight to the tissues, not carried by blood.
How Long Can Ants Live Without Oxygen?
Ants can't live without oxygen. What they can do is close their spiracles. Some insects also have air sacs that hold a small reserve of air.
That lets them get through short periods without fresh air, such as being briefly submerged. How long they last depends on the species, temperature and how active they are. There is no single figure that applies to all ants.
Do Ants Get Out Of Breath?
Not the way we do. Ants don't have lungs, so they don't pant or gasp. Air moves through their tracheal tubes mostly by diffusion, helped by body movements in some insects.
If an ant falls into water, it can close its spiracles and rely on the air already inside its body for a short time.
Can Ants Suffocate?
Yes. Ants can suffocate if they are cut off from oxygen for too long. Air bubbles clinging to their bodies and closed spiracles buy them time in water, but they can't survive without oxygen indefinitely.
Can Ants Live Up To 30 Years?
Some ant queens live remarkably long lives. A study of the black garden ant (Lasius niger) notes that its queens can live 20 years and more.
Workers live much shorter lives. Their lifespan varies by species and by the colony's needs.
Can Ants Live In A Closed Container?
Only for a limited time. In a sealed container, the oxygen eventually runs out, and the ants will die without fresh air, food and moisture.
How long that takes depends on the size of the container, the number of ants, the species and the temperature.
How Long Do Ants Usually Live?
It depends on the species and the ant's role in the colony. Queens live the longest, sometimes for decades in long-lived species. Workers usually live for months to a few years, and males usually die soon after mating.
Final Verdict
Ants can't live without oxygen. They breathe through spiracles and tracheal tubes instead of lungs. Closing their spiracles lets them hold out for short periods, such as when they fall into water, but they still need oxygen to survive.
Sources
- Respiratory System, ENT 425 General Entomology, NC State University
- Insect Breathing, Ask A Biologist, Arizona State University
- Worker lifespan is an adaptive trait during colony establishment in the long-lived ant Lasius niger, Max Planck Institute for Demographic Research
