Baby’s hidden hair smell has a survival strategy

One of the means of communication between animals of the same species in the animal world without language is a chemical called pheromone. Pheromones are odor substances secreted out of the body to transmit signals such as warning or courtship. It is known that insects such as silkworm moths and bees mainly secrete pheromone as a means of mating, and some vertebrates and plants also use pheromone.

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