What's that terrible smell? It's the revolting scent of rot. But being rotten isn't necessarily bad. If nothing ever rotted, nothing new could live.Decomposition may seem like the last stop on the food chain, but it's just the beginning. When dead plants and animals decay, they give life to a host of other creatures, and each one helps ecosystems thrive. Decomposition happens in the forest, the ocean—even in your stomach and between your teeth! From vultures and sharks to bacteria, maggots, mushrooms, and more, discover the dirty rotten truth about one of nature's most fascinating processes.