PBS Eons has a new episode. This one is about a group of dinosaurs called alvarezsaurs that some researchers think might have eaten insects.
We often think of dinosaurs as either preying on other dinos or mammals, or as plant-eaters -- but in ecosystems today, those aren’t the only two options. So why would we expect dinosaurs to have only been carnivores or herbivores, with the occasional omnivore thrown in the mix?
