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Tooth loss in birds occurred about 116 million years ago


ScienceDaily

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A question that has intrigued biologists is: Were teeth lost in the common ancestor of all living birds or convergently in two or more independent lineages of birds? A research team used the degraded remnants of tooth genes in birds to determine that teeth were lost in the common ancestor of all living birds more than 100 million years ago.9oMvHY3wkTo

 

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