If only the 9ft tall terror birds [1] from South America hadn't gone extinct 1.8 million years ago, we would never have thought Dinosaurs went extinct in the fi

If only the 9ft tall terror birds [1] from South America hadn't gone extinct 1.8 million years ago, we would never have thought Dinosaurs went extinct in the first place (or said differently, the fast that birds are dinosaurs would have been obvious from the start). [1]https://en.wikipedia.org/wiki/Phorusrhacidae https://en.wikipedia.org/wiki/Phorusrhacidae