Archaea are ubiquitous microorganisms whose evolution shaped the biosphere of Earth. Their evolutionary paths are truly fascinating. A great example is an ectosymbiotic lifestyle which is found among DPANN archaea. Archaea are ubiquitous microorganisms whose evolution shaped the biosphere of Earth. Their evolutionary paths are truly fascinating. A great example is an ectosymbiotic lifestyle which is found among DPANN archaea. Cell & Microbiology Phys.org – latest science and technology news stories