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A recent study has confirmed that the discovery of stomach stones in dinosaurs opens a new window for understanding how they digested their food. Notably, some dinosaurs lost their teeth and relied on stones to break down their food, which facilitated the transfer of the grinding task from the jaw to the stomach. The findings showed that the shape of these stones varied depending on the type of stomach, and that beaked dinosaurs used their jaws for grinding, while those with sharp teeth depended on stones to aid digestion. This adaptation may have contributed to their ability to fly and the evolutionary development of birds.
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