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Understanding the Function of Pheromones in Mammals

by batoujitsu

Almost all mammals do release these pheromones for attracting
their partners and also in order to send alarm signals. The
mammals have found out the best use of these pheromones than
human beings and they are getting benefited in all senses. We can
distinguish the pheromones in mammals into two categories
depending on their functions.

1. Releaser Pheromones

Many mammals (e.g., dogs and cats) deposit pheromones in and/or
around their "territory". As these vaporize, they signal to other
members of the species of the presence of the occupant of the
territory.

Domestic rabbit mothers release a mammary pheromone that
triggers immediate nursing behavior by their babies (pups). A
good thing, too, as mothers devote only 5-7 minutes a day to
feeding their pups so they had better be quick about it. This
kind of pheromonal activity is also seen in pigs, cows and also
chicks.

2. Primer Pheromones

Rats and mice give off pheromones that elicit mating behavior.
However, the response for these pheromones is not immediate as it
is in the releaser pheromones of mother rabbits and insects.
Instead, detection of the pheromone primes the endocrine system
of the recipient to make the changes, e.g., ovulation, needed for
successful mating.

Primer pheromones are detected by the olfactory epithelium with
which normal odors are detected and also in most mammals by the
vomeronasal organ (VNO). The neurons leading from the VNO take a
separate path into and through the brain.

The pheromonal attraction is more powerful than physical
attraction in mammals. In goats, sheep, and pigs, male dominance
in competition for females is determined by the strength of the
male's pheromone - and not physical strength or beauty. The
animals with the strongest pheromones have more confident threat
displays without giving signals of fear.

This reduces the incidence of actual physical combat for females
- especially among deer and moose. The pheromones of the male
with the strongest pheromone cause a psychological castration of
other males which helps remove them from competition. In pigs,
the pheromone androstenone triggers the female's receptivity to
the male.

This type of pheromone dominance may also apply to humans since
many researchers think human pheromone responses are very similar
to pigs. Truffles, which are a fungus that grows underground near
oak trees in France and Italy, are highly valued as human
aphrodisiacs. Pigs also are passionately attracted to truffles
and are used to locate the truffles. So a man's pheromone smell
may affect females more strongly than his good looks, money, or
wit.

Not only in male-female cultures, have these pheromones played
an important role in mother and the baby relationship bonding
also. Many pheromones are air borne particles that pass through
air after evaporation by the heat of the body. Some pheromones
are heavy proteins that cannot be passed through the air by
evaporation.

These are passed by physical contact such as by kissing or
skin-to-skin contact. Kissing occurs in all human cultures and is
a way of passing identification pheromones. When a mother kisses
her baby, this increases the mother-baby bonding.

Learn more about <a
href="http://phermonesguide.blogspot.com/">Phermones</a> at
http://phermonesguide.blogspot.com

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