Fossil of world's earliest modern bird could help us understand the extinction of dinosaurs

Fossils of the oldest member of the lineage to which today's birds belong has been found in Hebei province of Northern China. The discovery pushes back the evolutionary record for birds by nearly 6m years and challenges the traditional view of bird evolution. The fossils may one day help solve the puzzle of why dinosaurs that weren't related to birds were wiped out as a result of mass extinction.

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