Content-Type: text/shitpost

How is it that mushrooms can appear so suddenly overnight or immediately after a rainstorm? It turns out that the fungus organism builds the mushroom structure ahead of time. All the cells are there, properly assembled, but very small, in a form called a primordium. When enough water is available, the fungus pumps it into the cells, inflating them like water balloons, and the mushroom pops up.

It's been very damp in Philadelphia of late.