Cat vs. Mouse (IMAGE) University of California - Berkeley Caption A mouse infected with the Toxoplasma parasite loses its fear of cats, which is good for both the parasite and the cat. The cat gets an easy meal, while the parasite gets into the cat's intestinal system, the only place it can sexually reproduce and complete its cycle of infection. Credit Wendy Ingram, UC Berkeley Usage Restrictions None 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.