<human>:  I have a question about the Scent article. What is the difference between a pheromone and a scent?
<bot>: A pheromone is a chemical signal that is used to communicate between members of the same species. A scent is a smell that is used to communicate between members of different species. Pheromones are often used by animals to attract mates, while scents are used to communicate between animals of different species.