Pill bug feeding assay (VIDEO) National Institutes of Natural Sciences This video is under embargo. Please login to access this video. Caption Hungry pill bugs were placed in a petri dish containing liverworts with no or over-generated oil bodies, and compared their herbivory. The liverworts without the oil body were eaten by pill bugs, but the liverworts with an increased number of oil bodies were not, indicating that the oil bodies have a function for protection against herbivores including arthropods. Credit Takehiko Kanazawa, NIBB Usage Restrictions Must credit: "Takehiko Kanazawa, NIBB" 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.