Forebrain Neural Progenitor Cells (IMAGE) Salk Institute Caption A stylized microscopy image of forebrain neural progenitor cells from chimpanzees described in the publication. The image represents the work's potential for offering insights into the evolution of the primate tree of life. Credit Salk Institute/Carol Marchetto/Ana P.D. Mendes Usage Restrictions With credit and related coverage. 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.