Eli5: why are birds believed to be the descendants of the dinosaurs?
In: Earth Science
Based on dna evidence and fossils of similar animals that show obvious features from both animals. You can see the fossils go from raptor, to raptor with wings, to bird with teeth, to bird. [This image](https://ars.els-cdn.com/content/image/1-s2.0-S0960982215009458-gr1.jpg) shows the lineage and different features.
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