Finally, someone came across something sharp and pointy—a tooth! Diego looked closely at the tooth. He knew that one tooth could tell him so much about how this giant creature ate. Once again, Diego began to calculate. “Based on this titanosaur’s weight,” he ! nally said, “it must have eaten the amount of plants it would take to cover an entire soccer ! eld every single day!”
TEETH
can tell scientists so much about the creature
they come from. Teeth are much harder and stronger than skull bones, and are more likely to be preserved. (Even though over seventy species of titanosaur have been discovered, only four skulls have ever been found!) The tooth they found had clear facets, or indentations, which led them to conclude that the titanosaur used its teeth to cut branches and leaves. Like many dinosaur teeth, these were not very good for chewing, so the titanosaur probably gulped entire leaves! The teeth of meat- eating dinosaurs were much sharper, perfect for hunting.
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