Chronic Infection with the Parasite T. gondii Can Make Mice Lose Their Innate Fear of Cats (image) PLOS Share Print E-Mail Caption The loss of mice's innate fear may persist after the parasite is no longer detectable in their brains, suggesting that initial infection may cause permanent changes in the mechanisms underlying their fear of predators. Credit Wendy Ingram and Adrienne Greene Usage Restrictions All figures and photographic images will be published under a Creative Commons Attribution License (CCAL), which allows them to be freely used, distributed, and built upon as long as proper attribution is given. Share Print E-Mail 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.