Fires on the Savanna (IMAGE) NASA/Goddard Space Flight Center Caption Fires in the savanna, like this one in South Africa, burn quickly through grasses, and help prevent trees and larger shrubs from taking root. Credit Guido van der Werf / Vrije Universiteit Amsterdam, the Netherlands Usage Restrictions None 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.