Scientists found some amber from the heyday of dinosaurs, and it had a bunch of feathers in it. Over the past decade or two, the consensus among scientists has shifted to the idea that birds come from dinosaurs, partly because they kept finding dinosaurs with fossilized feathers, but also because some dinosaurs (theropods) and birds share a lot of other anatomical features, like hollow bones. The evidence shows that the amber they found has feathers that came from both dinosaurs and birds of that period. It was found in Alberta, Canada.
From The New York Times, via NPR
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