Review Of Did Dinosaurs Eat Cows References. Around 250 million years ago, when the dinosaurs roamed the planet, the earth was up to 10 celsius warmer. Researchers think that the methane produced by dinosaurs could have caused the earth to become warmer.
Did dinosaurs chew their food? Of course we also know what they did not eat in terms of vegetation. That means they could graze on plants as high as six meters (about 20 feet).
