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“While the human brain’s ability to distinguish different odors may be impressive, many mammalian brains can also identify an altogether different type of “smell.” Mammals ranging from mice to elephants produce substances called pheromones, which communicate information about social status and when an individual is ready to reproduce. These signals are somehow picked up through the “accessory” olfactory system, which is separate from the “main” olfactory system that allows us to appreciate, for example, the scent of a rose bouquet.” - EurekAlert

Tags: Nose, pheromones, Science, Smell