The life on Nielea is vast and widely adapated, and as such people have spent much time cataloguing as much life as they can into volumes of beastiaries. This category serves to display all forms of life on Nielea. It is also to be noted that Nielea has most animals that exist on Earth, so it is to be assumed they exist unless stated otherwise as it would be too much to make an article for each species. Instead, this category will list the forms of life that exist purely on Nielea, or any forms of Earth life that is extinct that are alive on Nielea.