"Across a herbivore's life, its teeth gradually wear down," Paul says. "This puts an upper limit on the life of some mammals, like elephants or cows. Once their teeth are gone, the animal can no ...

Evolution has resulted in the development of both herbivores ... such as dinosaurs. In addition to the chemical traces of ingested food, the research team also analyzed mechanical tooth wear ...

Some were as tall as buildings and had sharp teeth, like the Tyrannosaurus ... some ate plants and some ate both. Dinosaurs that ate plants were called herbivores. The Triceratops is an example ...

The isotope ratios are lower in herbivores and even lower ... habits of prehistoric reptiles, such as dinosaurs. Mechanical wear patterns on teeth supply additional information on dietary ...

Some fossils found in the rib cage of the predator, including a tooth of a lungfish and a small bone of a herbivorous dinosaur, are also showcased and may point to its last meal. Except for the ...