The Nose Of a Human Can Detect Over One Trillion Smells
While we don’t have the sharpest nose amongst animal species, we have a pretty good nose too. The nose contains about four hundred smell receptors capable of detecting odors and can smell one trillion odors.
However, even though we can detect many smells, we can only tell apart about 10,000 of them. This is why dogs have a better sense of smell because they can detect a wide range of odors and tell them apart.