Marsupial Illustration (IMAGE) University of Washington Caption A rendering of the early marsupial relative, Didelphodon vorax. This opossum-sized mammal had pound-for-pound, the strongest bite force of any mammal ever recorded and could eat a wide variety of foods, including snails and small dinosaurs. Credit Misaki Ouchida Usage Restrictions Must include credit 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.