Maybe their meat-eating cousins left them green with envy. Turns out, big plant-eating dinosaurs occasionally scoffed more protein. New research of animal bits found in fossilized dung shows that some of these giants ate crustaceans. Much like hippos — also known as herbivores — have been shown to eat a surprising amount of meat, dinosaur diets were apparently more varied than originally thought. My home state is filled with dinosaur fossils, and I’m always amazed by how modern findings can give us new and improved glimpses into the past.