Cats have twice as many receptors in the olfactory epithelium (i.e. smell-sensitive cells in their noses) as people do. That means cats have a more acute sense of smell than humans. In fact cats have 200 million odour-sensitive cells in their noses whereas humans only have 5 million odour-sensitive cells. A cat can smell stinky cat food which is several miles away, but would be less able to distinguish various types of odours. But a cat doesn’t care as long as it is able to smell its favourite food items!
Because their sense of smell is so sensitive, it’s important to be aware of things like scented litter, other animal’s smells on you or an unfamiliar scent in your cat’s environment (such as a new piece of furniture or a house guest). These things may upset your feline friend.
Picture Credit : Google