ScienceDaily Posted December 11, 2014 Share Posted December 11, 2014 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. Read the full article on ScienceDaily Link to comment Share on other sites More sharing options...
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