Fascinating fungi are why people like the rainy season. This is also when mountain forests teem with life. Some fungi are so small that they can only be seen under a microscope, while some are so large that they must be photographed from a distance. Saprophytic, parasitic, and symbiotic relationships among fungi and plants affect the majority of animal and plant species. In Earth’s ecosystems, fungi participate in the decomposition of biological remains and organic matter, enabling them to be naturally recycled.