Scientific tree of life postcards Posted on 2012/07/16 by admin Wanny know where you fit into the universe? This tree shows you from protozoa to invertebrates to metazoa to vertebrates. This is a fun design with great graphic design elements. We hope you find this design to be cool, unique, humorous and fun! product tags: science, animals, protozoa, metazoa, invertebrates, vertebrates, funny, customized, printed, custom, cool, customize, humorous, postcards,