There are phosphorescent mushrooms, for instance. There is also a species of springtail; however, its body is so small as to render it invisible, making it hard for people to be even aware of its existence.
除了螢光蕈之外，有一種「跳蟲」也會發光，但因為體積太小，沒有可看性，很難讓人感覺到牠的存在。