Linda Amaral Zettler, Felipe Gomez, Eric Zettler, Brendan Keenan, Ricardo Amils, Mitchell Sogin, Nature Publishing Group
This brief journal communication describes the eukaryotic diversity of Spain's Rio Tinto, which is surprisingly greater than that of the prokaryotes. Morphology and molecular- based investigations are introduced and results are shown in the form of a minimum-evolution analysis phylogeny. The article challenges former ideas about the phylogenetic range of organisms that are capable of living in extreme environments. A subscription to nature (http://www.nature.com) is needed to view this resource.