The smell is a communication system?
Yes, the brain monitors with each breath everything that is happening. Smell is the only sense that we cannot turn off.
Does our brain receive odors that we are not aware of?
Yes, scents that are subconsciously active.
Does each person have their own smell or can there be two people who smell the same?
It is not known. But we are one of the smelliest animals on the planet, our entire skin is covered with glands that emit odor, we release a lot of information.
What type?
Our genetic makeup, if you're sick, if you're scared, where you've been.
Why do we cover our smell?
Perfumes began to be used in the 1700s, especially in France, where the streets stank, and it became the most profitable industry because we don't want to smell like humans.
We prefer to smell like flowers or trees.
A perfume always has a prominent note and sub-notes that are almost subconscious, such as feces or human urine, which in minute quantities we find pleasant even if it doesn't seem so to us; we also use anal glands from certain animals.
Curious.
Animals use certain scents to protect themselves from parasites, birds put scents in their nests.
We have huge noses.
If you compare the inside of the human nose and that of a dog or a rabbit, ours is small. Inside our nose we have 350 receptors to detect different odor molecules, but a mouse has 1,200, and an elephant, 2,400. We're not the best smellers.
A dog that sniffs your neighborhood has everything under control.
They see history, they can see what has happened, they can smell the trail of an animal days after it has passed, and they can smell what is coming before they see it.
Do tears have a smell?
Yes, and the smell of tears has been shown to decrease testosterone levels and aggression in humans.
Do plants have smell?
Plants perceive chemical references and the volatile substances they emit function as chemical messages.
Do they communicate through smells?
A plant launches molecules into its neighborhood to warn of danger, and the other plants vary their scent to avoid that predator.
What lists!
Imagine a cotton plant that can be attacked by different insects; the plant will change its chemistry depending on which insect is eating its leaves because it distinguishes the saliva of each one and will cause an effect calling on the enemies of that specific insect to rid it of the plague.
Fish also have smell.
And excellent. Salmon find their way back home through smell. All fish have different types of pheromones to communicate.
And the birds?
They also communicate through smells, but it goes further, the albatross, for example, is capable of smelling plankton at very long distances; if there is plankton, there are many fish.
What creature has the best sense of smell?
The moth, a hundred million times more sensitive than us. If you dissolve a packet of sugar in the Mediterranean, a moth would detect the smell; he can smell the female, spewing a homeopathic dose, a mile away.
Do mosquitoes smell diabetics?
Yes, they like your smell, and that of pregnant women, and beer drinkers, and sweaty feet; and they are also able to smell if a person already has malaria.
How to use the great nose of nature to our advantage?
A dog can smell anything, including cancer, today organic vineyards are protected by making the entire vineyard smell like moths, there are many examples.
They train insects to detect explosives.
They can be trained to detect almost any scent just like dogs and rats, there was a rat that got a medal for detecting 70 mines in Cambodia.
What does the future smell like?
I am carrying out a large research project and we see that the gases we emit are very polluting and vary the smell of things, so that the insects cannot find the flowers that they have to pollinate.
Is the communication of the species in danger?
Yeah, and their pheromones are rusty and they mate with the wrong species. We are going to see constant changes and for the worse. We are stupid, instead of curbing CO2 emissions we increase them. I am convinced that we are going to extinction, but the Earth will be reborn.
