Because dinosaurs have been extinct for about 65 million years, it’s difficult for scientists and paleontologists to know exactly what dinosaurs ate. However, they’re often able to gather clues from characteristics of a dinosaur’s fossils (like the size of the teeth or the sharpness of claws) or occasionally (but very rarely) from preserved contents of a dinosaur’s last meal or even a little bit of dino poop!
The dodo bird ate mostly fruits and seeds. Occasionally it would swallow pebbles to help it digest the seeds.
It did eat fruits from the Calvaria tree, also known as the dodo tree, or the tambalacoque.