Lin Jiang, Georgia Tech (2 of 2) (IMAGE) Georgia Institute of Technology Caption Lin Jiang, an assistant professor in the Georgia Tech School of Biology, looks into a microscope at a protist species. In a recent study, Jiang found that extinction occurred more frequently and more rapidly between protist species that were more closely related, providing strong support for Darwin's phylogenetic limiting similarity hypothesis. Credit Georgia Tech/Gary Meek 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.