Cats’ sense of smell is more than 200,000 times that of humans. Cats can distinguish about 20,000 kinds of odors. There are many folds inside the cat’s nose. There are more than 200 million olfactory cells in the folds, so the cat’s sense of smell is particularly sensitive. If you send the cat to a place 60 kilometers away from home, the cat can also smell it at will. Find your way home by smell. In addition, newborn kittens also rely on their sense of smell to find the location of their mother's nipples.

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There are about 99 million nerve endings in the cat’s nasal mucosa. Cats can rely on their sense of smell to judge various things around them. For example, cats can By smelling the urine and odor glands of the same species, you can determine whether the cat is male or female and whether it is in estrus. Therefore, most male cats will urinate to attract surrounding female cats when they are in estrus.