answers1: Yes humans do have accessory olfactory systems. <br>
<br>
Humans have a gene called HLA which allows humans to find blood
relatives, and biological children. This gene is only for
mother/father and child, but not for husbands and wives
identification.
answers2: We do have it, but it's more of a subconscious thing and it
is often replaced by our own reasoning. for example, we do react to
pheromones, we always have, and that allows us to find our
biologically ideal matches (mates). but in the era of perfumes and
deodorants, this has little play nowadays. But yes, we do have an
accessory olfactory system
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