Mountains of the Eastern Arch of Tanzania (IMAGE) Institut de recherche pour le développement Caption Mountains of the eastern arch of Tanzania. The flora of this region is threatened with extinction. Credit IRD - Thomas Couvreur Usage Restrictions Mention copyright License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.