Bird’s nest fungi are tiny — only about a centimeter wide. When mature, they form a curved splash cap containing spore sacs known as peridioles. Then they await rain. When a lucky drop hits the mushroom, it flings the peridioles out of their nest. Some will use sticky cords to cling to nearby blades of grass, setting them up to eventually hitch a ride to elsewhere with a grazing herbivore. It’s an impressive journey for a teeny spore sac, and it all starts with a single drop of rain. (Image and video credit: Deep Look)
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