After a cat smells a certain smell, it will open its mouth to sniff the smell in. Why does the cat smell something and its mouth open? Is it because cats need to open their mouths to distinguish? In fact, it is the cat's instinctive behavior to further analyze the odor.
If the cat smells the smell of its annoying, such as orange or durian, then the cat will quickly turn around and walk away. When a cat smells a certain smell and develops lip-sniffing behavior, it proves that the cat is attracted by this smell. In order to better study this smell, the cat used all its olfactory organs just to smell it.
There is an organ called the covolar organ growing directly behind the front teeth in the upper jaw of the cat's mouth. The function of this organ is to amplify the cat's sense of smell. The vomeronas sends signals to the cat's brain, which can then increase the cat's perception of its surroundings. In layman's terms, cats can use their mouths to "taste" the taste.
But interestingly, although all cats have cleft lip sniffing reactions, studies have found that male cats have much higher cleft lip sniffing reactions than female cats. Cause? Because male cats often use cleft lips to sniff to find a partner. Through the cleft lip sniffing reaction, the male cat can tell whether the other party is now suitable for mating by smelling the female cat.
So next time your cat smells your feet again, if you are so shocked that you can't stop talking about your feet, you won't dislike your feet. Instead, it is very interested in the smell that your feet emit.