Pheromones are chemical signals that are intended to provoke a certain response in others of the same species. They are a special type of hormone that can induce various states of emotion or activity. They are an important tool, particularly among insects, though certain plants and more advanced mammals have been known to use pheromones as well.
Fun Fact
Pheromones are chemical, biological messengers that are released and directed from one member of a species to another. When the pheromone hits, it affects the behavior and biology of the other member and creates a variety of different responses.
Types
There are many different types of pheromones. Some are used to attract the opposite sex for mating, some are used to mark an organism's territory, while still others are meant to put a group on alert when a predator attacks.
Insects
Insects use pheromones more often than any other organism and also have the most varied pheromones. Some of these can be harnessed and used to control pest populations.
Detection
Animals detect pheromones through the Jackobson's organ, which is part of the olfactory system. Insects detect them through various glands that are dependent on the species.
Humans
Extended research has not been done to test pheromone activity in humans. However, sex-related hormones are generally believed to pass between humans.
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