Horizontal memory transfer in C. elegans (IMAGE) Princeton University Caption Researchers in Coleen Murphy’s lab at Princeton University found that mother worms who encounter pathogenic Pseudomonas aeruginosa in their environment learn to avoid the bacterium via a mechanism involving the retrotransposon Cer1. Cer1 is also needed for inheritance of avoidance behavior by the worms’ offspring, and its release into the environment can transfer avoidance behavior to naïve worms. Image courtesy of Murphy lab. Credit Courtesy of the Murphy lab Usage Restrictions Editorial use only License Original 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.