Mushrooms are the reproductive bodies of mushroom-producing fungus; similar to fruit from trees, the mushrooms exists to spread the spores that allow new fungi to take root and grow. Also similar to fruit, mushrooms have finite lives, and start to decompose as climate conditions change or as their own lifespan ends. Therefore, mushrooms produce spores continually after they mature from the button stage until they become "over-mature" and cease to produce, spreading as many spores as possible to keep their species alive. This mature production of spores means that it would be impossible to remove all the spores from a mushroom while it is still mature; the production of spores continues until the mushroom (not the fungal body) ages then dies. It might be possible to continually remove the spores from the area with a continuous vacuum and wind, but the mushroom will keep producing spores. If the mushroom is picked, it will stop producing, and can be cleaned of spores; the fungal body will eventually produce a new mushroom to continue the reproduction process.