why dont birds have teeth
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lolti
what lolti
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they have their digestive system in different to human I case of that it has absence of teeth
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Modern birds have curved beaks and a hearty digestive tract that help them grind and process food. But the 1861 finding of the fossil bird Archaeopteryx in Germany suggested that birds descended from toothed reptile ancestors, Springer said. And scientists now know that birds evolved from theropod dinosaurs, carnivorous beasts such as Tyrannosaurus rex, which had a mouth full of sharp teeth.
An Archaeopteryx fossil discovered in Germany
An Archaeopteryx fossil discovered in Germany
Credit: Humboldt Museum für Naturkunde Berlin
But no one knew exactly what happened to the teeth in the evolution of these animals from then until now. "The history of tooth loss in the ancestry of modern birds has remained elusive for more than 150 years," Springer said. [8 Foods for Healthy Teeth]
In the new study, the researchers wondered whether the bird lineage lost its teeth in a single event, meaning the common ancestor of all birds did not have teeth, or whether edentulism happened independently, in different lines of birds throughout history, the researchers said.
An Archaeopteryx fossil discovered in Germany
An Archaeopteryx fossil discovered in Germany
Credit: Humboldt Museum für Naturkunde Berlin
But no one knew exactly what happened to the teeth in the evolution of these animals from then until now. "The history of tooth loss in the ancestry of modern birds has remained elusive for more than 150 years," Springer said. [8 Foods for Healthy Teeth]
In the new study, the researchers wondered whether the bird lineage lost its teeth in a single event, meaning the common ancestor of all birds did not have teeth, or whether edentulism happened independently, in different lines of birds throughout history, the researchers said.
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