The olfaction is the organ for which the scents are perceived.
The olfaction is one in the ways that have to know about our world.
In the beings human this sense is not very developed.
However, they possess among 10 and 20 million cells
that pick up the scents and it allows them to distinguish
between 2 thousand and 4 thousand classes of different scents.
After perceiving the scent of during a while, the sense
of the olfaction gets tired and it doesn't smell anything.
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