Natura - nature organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020] 1 viruses 2 Bacteria Woese et al. 1990 3 Archaea Woese et al. 1990 4 Eukaryota Chatton, 1925 - eukaryotes