mongoose (IMAGE) Max Planck Institute of Geoanthropology Caption The mongoose was introduced by colonists to the islands of Guadeloupe in the 1880s as a method of controlling rats and snakes. It has had a detrimental effect on snake and lizard biodiversity. Credit Photo by Omkar Vinchu from Pexels Usage Restrictions Free use with credit 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.