Lizards eat fire ants (IMAGE) Penn State Caption Eating fire ants might prepare a lizard’s immune system to be stung by the ants, according to a new study by researchers at Penn State. Credit Langkilde Lab/Penn State Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND 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.