Modern Birds Appeared 100 Million Years Ago! – So says their DNA

The oldest known bird, Archaeopteryx, lived 150 million years ago, but this species and its relatives can be hardly differentiated from dinosaurs. And for about 90 million years on, fossil birds had been toothed, being very different from the modern types. Fossils resembling modern birds started to appear around the demise of the dinosaurs.

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Updated: February 17, 2012 — 7:38 pm

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