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A pheromone (from Ancient Greek φέρω (phérō) 'to bear' and hormone) is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals. [ 1 ]
Pheromones, in general, are secreted chemical substances by organisms that trigger a social reaction in the same species. Sex pheromones are a special type of olfactory signal, produced to attract the opposite sex, to encourage mating or to perform some other function closely related to sexual reproduction.
Insect pheromones are produced by a variety of exocrine glands consisting primarily of modified epidermal cells at various sites on the insect body. For example, the abdominal glands of the female silkmoth release traces of the ( E,E )-isomer of alcohol as well as the analogous ( E,Z )-aldehyde bombycal, in addition to the sex pheromone bombycol.
A pheromone (from Greek phero "to bear" + hormone from Greek – "impetus") is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting outside the body of the secreting individual to impact the behavior of the receiving individual. [5]
Trail pheromones are semiochemicals secreted from the body of an individual to affect the behavior of another individual receiving it. Trail pheromones often serve as a multi purpose chemical secretion that leads members of its own species towards a food source, while representing a territorial mark in the form of an allomone to organisms outside of their species. [1]
Human pheromones are contained in sweat, semen, vaginal secretions, breast milk, and urine. [1] The signals carried in these fluids serve a range of functions from reproductive signaling to infant socialization. [16] Each person produces a unique spread of pheromones that can be identified by others. [2]
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Pheromones are chemical messengers produced and emitted by the body that contribute significantly to interpersonal attraction. [8] The two types of pheromones include signal and primer, each playing a distinct role in human behavior. Signal pheromones act as attractants and repellents; they are classified short-term behavioral pheromones.