This vast domain of hidden biodiversity is increased still further by the dark matter of the biological world of bacteria, which within just the last several years still were known from only about 6,000 species of bacteria worldwide.
Ovo široko područje skrivene  bioraznolikosti se još uvećava tamnom tvari biološkog svijeta bakterija, unutar koje je u zadnjih nekoliko godina bilo poznato tek 6000  bakterija u cijelom svijetu.