Photograph of the 120 million-year-old enantiornithine bird Yuanchuavis kompsosoura with a pintail of the kind present in modern male sunbirds (IMAGE)

Chinese Academy of Sciences Headquarters

Photograph of the 120 million-year-old enantiornithine bird Yuanchuavis kompsosoura with a pintail of the kind present in modern male sunbirds

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Photograph of the 120 million-year-old enantiornithine bird Yuanchuavis kompsosoura with a pintail of the kind present in modern male sunbirds

Credit

WANG Min

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