Fish do not smell as we do. They have sense organs along their lateral line and in some species on barbels around their mouths and other areas too, that do the equivalent of smelling.
Pheromones are very important chemical messages that animals use to communicate to each other. Generally, pheromones tell animals of the same species a) the state of reproductive readiness (Male elk for example can tell if a female is ready to mate by smelling her urine to see if there are certain pheromones present indicating that she is ready) or b) the emotional state of the animal (sometimes fish release fear pheromones into the water to warn other fish of a predator) Pheromones are typically inhaled by animals, and the brain determines what the pheromone means. Even humans can interpret what a pheromone means, even though we are not really aware that we are smelling a pheromone.
Animals use pheromones because they need to find mates and they have to use their instincts to attract mates and keep away predators.
males use a protein to detect pheromones sent by females
There are four types of pheromones in humans: Releaser pheromones, Primer pheromones, Signaller pheromones and Modulator pheromones. These hormones have roles in a wide range of human functions including sexual attraction and the transmission of information.
Ants use pheromones for communication.
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Sweat glands secrete pheromones in humans. Pheromones are naturally secreted. A persons specific pheromones are often attractive to another person.
Moths used pheromones to locate mates. A female moth will release them into the air for a male to detect with those feathery looking antennae.
Military or social, ants use pheromones to colonize, so do bees...
They are pheromones.
Plant pheromones are collected by taking the flower off the plant, and then extracting the pheromones. This is usually done in a laboratory environment.
Female urine contains male-attracting pheromones...