It has already been shown that dogs, with their great sense of smell, can be trained to detect cancer.
It also seems that, surprisingly, ants, who also possess great olfactory ability might be trainable in the same way, by smelling urine specifically to detect cancer, and would be a cheaper way to do this than using dogs.
At least it has worked so far in mice, as a study has shown. But more work is needed to see if it can work as well in humans:
So is the use of ants as smell-detectors for prostate cancer in particular feasible?
Short answer: it might just work, but more research is needed to bring it to reality.
But Copilot says it is promising, and offers reasons why it would be a useful advancement in cancer detection:
Copilot:
Q: can ants be used to smell and detect the presence of prostate cancer in humans
A: Yes — ants can be trained to detect the smell of cancer, but only in controlled research settings, and not yet specifically for prostate cancer in humans. The strongest evidence comes from studies showing that ants can learn to recognize volatile organic compounds (VOCs) emitted by tumors. These VOCs change the odor of biological samples such as urine.
Core takeaway:
Ants have demonstrated the ability to smell and detect tumor‑related odors, including in urine samples from mice with human tumors. This suggests they could one day help detect cancers such as prostate cancer, but no published study has yet shown ants detecting prostate cancer specifically in humans.
What the research actually shows.
- Ants detect tumor VOCs in urine
Multiple studies (2022–2023) show:
Tumors produce distinct VOC signatures.
Ants can be trained through simple olfactory conditioning to distinguish tumor-bearing mice from healthy mice.
They can learn the association after only three trials.
After training, ants spend ~20% more time near the tumor odor than the control odor
These experiments used patient-derived xenograft mice — mice implanted with human tumor tissue. This means ants were detecting human tumor VOCs, but in a mouse urine environment.
- Ants have an unusually powerful sense of smell.
Ants possess hundreds of odorant receptor genes and a highly specialized olfactory system. Recent work shows their gene regulation mechanisms may even offer insights into human cancer biology.
So can ants detect prostate cancer?
What we know:
Tumors, including prostate tumors, produce unique VOC profiles in urine.
Dogs and electronic noses have already shown the ability to detect prostate cancer VOCs.
Ants have proven they can detect VOCs from other human tumors in urine.
What we don’t yet have:
No published study has trained ants specifically on prostate cancer VOCs.
No clinical trials currently exist involving human patients and ant-based detection.
Scientific inference:
Because ants can detect VOCs from human tumors in urine, and prostate cancer also alters urine VOCs, it is scientifically plausible that ants could detect prostate cancer — but this remains unproven until direct experiments are conducted.
Why ants are scientifically interesting for cancer detection:
Fast learners — only minutes of training needed.
Extremely sensitive olfaction — comparable to or exceeding some mammals.
Low cost — far cheaper than dogs or electronic noses.
Scalable — large numbers can be trained quickly.
Researchers describe ants as “efficient and inexpensive cancer bio-detectors.”
Bottom line:
Ants can detect cancer-related odors, including human tumor VOCs in urine.
They have not yet been tested on prostate cancer specifically.
The science strongly suggests they could, but the research has not yet been done.
If you want, I can go deeper into prostate cancer VOC biomarkers, how ant training works, or how ants compare to dogs and electronic noses.
Obviously just one more avenue to pursue in the ongoing quest to find tools for cancer progress, some of them surprising, like using ants as cancer-detectors.
Maybe it will pan out, and maybe it won’t.
But remember when we were kids, and having an ant farm (with real ants) was considered a great toy among some of us? A great educational toy, was the idea:
https://sxb1010.wixsite.com/the-1950s/kidfads
and
(Apparently they still can be bought and set up at home, if one so desires. Great gift for the grandkids?).
I never had one myself as a kid, and, anyway, my parents were quick to object: “what if they get out and spread all over the house???”
But it’s also got to be a pretty safe assumption that NOBODY back then ever dreamed that ants might someday be used as cancer-sniffers, and actually be of service to humanity in that way.
So maybe ants can make it up to humans for all those picnics they ruined over the years!