Multiple Blue Rings

Dogs Can Smell 10 Things That Humans Can't

A dog's sense of smell is essential to its survival and its ability to make sense of its environment. Compared to humans, whose noses typically have 6 million olfactory receptors (also known as odor receptors), a dog's nose typically contains 300 million.

That's right! Working Dog Center Director Cindy Otto at the University of Pennsylvania is educating eight Labrador Retrievers to detect COVID-19. If the research pans out, coronavirus screening using dogs might become standard practice in public places like airports.


Dogs are utilized in missing person searches because of their exceptional capacity to detect human scent. According to Dan Morris of PetNPat, "trained search and rescue dogs can follow a scent from footstep to footstep, and even catch scents in the air."


Pet specialist Peter Laskay says, "Scientists have confirmed that dogs can smell cancer in its early stages, specifically lung and breast cancer." Dogs can detect proteins released by the malignant tumor in their urine.


If dogs can detect the odor of human urine, it stands to reason that they can also detect the odor of human hormones. Dogs are usually able to detect the hormonal changes that occur in a pregnant woman's body.

Ovulation and pregnancy

Dogs have a greater capacity than humans to comprehend our feelings. "When our mood shifts, so do our hormone levels (for example, cortisol and adrenaline for stress, and oxytocin and endorphins for happiness).


Bed bugs' scent glands emit a stench that is detectable only when there are many of them, as in an infestation.Bed-bug sniffing canines, whose extraordinary sense of smell is at the heart of many novel approaches to pest control, are one example.

Bed bugs

To paraphrase the study, "Dogs actually have sensory cells at the ends of their noses that act as sort of infrared sensors," done by researchers at Lund University in Sweden and Lorand University in Hungary.


It has been shown that dogs can detect even minute changes in the air, in addition to temperature changes, and use this information to accurately predict major weather occurrences like hurricanes and tornadoes.

Natural disasters

Detection dogs can be trained to sniff out a specific substance by conditioning and conditioning their noses. Fun Paw Care, LLC CEO Russell Hartstein claims that "our weaker noses" can't perceive this aroma. 


One of the most helpful things dogs can do for people with diabetes is monitor their blood sugar levels by sniffing their breath. Dogs can be trained to help people with severe diabetes by alerting them if their blood sugar becomes dangerously low.


Dogs With the Shortest Lifespans