To provide you with additional information about how we collect and use your personal data, we’ve recently updated our Privacy Policy and Terms of Service. Please review these pages now, as they apply to your continued use of our website.
Extremophile algae `Euglena Mutabilis` in the source of the river `Rio Tinto` in Spain. Euglena Mutabilis can survive in the highly acidic and toxic water of this river. Rio Tinto river, located in Spain, has been a very interesting research location for NASA, due to similarities to the Mars planet environment. Highly acidic environments are relatively scarce worldwide and are generally associated with volcanic activity and mining operation. RÃo Tinto is an unusual ecosystem due to its size 100 km long, rather constant acidic pH mean value 2.3, high concentration of heavy metals Fe, Cu, Zn, As, Mn, Cr, etc. and high level of microbial diversity.