Pet Lemurs in Madagascar (IMAGE) Duke University Caption A new study of Twitter activity shows that viral images of seemingly cuddly endangered animals can have a dark side too -- by fueling demand for them as pets. Credit Photo courtesy of Pet Lemur Survey Usage Restrictions Please credit Pet Lemur Survey 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.