AP BIOLOGY

Detailed explanation-1: -What Are Pheromones? Pheromones are chemical signals that have evolved for communication between members of the same species. A pheromone signal elicits a specific reaction in the receiver, for example, a stereotyped behavior (releaser effect) or a developmental process (primer effect).

Detailed explanation-2: -What is a pheromone? A Pheromone is a chemical produced by a given species that affects the behavior or physiology of the same species – first coined by Karlson and M. Luscher in 1959. Early work was in insects, but scientists soon discovered that pheromones operate in other animals, including mammals.

Detailed explanation-3: -Pheromones, unlike most other hormones, are ectohormones . They are secreted outside the body, and they influence the behavior of another individual.

Detailed explanation-4: -Pheromones are also sometimes classified as ecto-hormones. They were researched earlier by various scientists, including Jean-Henri Fabre, Joseph A. Lintner, Adolf Butenandt, and ethologist Karl von Frisch who called them various names, like for instance “alarm substances".