Some plant-eating dinosaurs apparently liked a side order of crabs to go with their usual salad.
Scientists said on Thursday fossilized dung thought to have come from herbivorous duck-billed dinosaurs that inhabited southern Utah 75 million years ago contained pieces of crustacean shells along with vestiges of vegetation.
The discovery provides the strongest evidence to date that some large herbivorous dinosaurs sometimes strayed from a purely vegetarian diet, said University of Colorado paleontologist Karen Chin, who led the research published in the journal Scientific Reports.