DNA analysis shows true dispersal of protozoa

In contrast to previous findings, it seems that the global distribution of macro- and microorganisms might be similar. A study in the online open access journal, BMC Evolutionary Biology, shows that some protozoa are globally dispersed, while others are geographically restricted - by looking at a new fast-evolving DNA marker. The study also reveals that the biodiversity of protozoa may be much higher than previously realised.