Trachops cirrhosus foraging (IMAGE) Smithsonian Tropical Research Institute Caption Most of the DNA recovered from the poop samples in the study belonged to frog species and plenty of lizards, but researchers also found evidence that the bats were eating other bats and even a hummingbird. Credit Marcos Guerra Usage Restrictions None 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.