Emerging Model System (image) University of Pennsylvania School of Medicine Share Print E-Mail Caption The ant Harpegnathos saltator is an emerging model system to study how epigenetic processes regulate brain function and behavior because adult workers retain the ability to switch into reproductive individuals that act like queens. This image shows a Harpegnathos saltator worker ant in the process of stinging a cricket to paralyze it and drag it into the nest as part of its hunting duties. Credit Image credit: Brigitte Baella Usage Restrictions None 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.