Photograph of a Tegu (IMAGE) GigaScience Caption Tegu, Salvator merianae, is a lizard from South American forests and savannas that has become an invasive species. Credit Renato Recoder Usage Restrictions Include credit to Renato Recoder 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.