How did the dinosaurs evolve?

How did the dinosaurs evolve into birds?

  • The dinosaurs died out some 65 million years ago. Since they all died, how did birds evolve from them?

  • Answer:

    The birds evolved during the life span of the dinosaurs, some 150 million years ago in the Jurassic era. The first bird like fossil to support this theory is called Archaeopteryx. Which shares characteristics of reptilians, and then feathers like a bird. More "proof" is a theoretical map of a T-rexes brain, which has indents on the interior skull matching those imprints of modern birds, these indents are made from the part of brain that gives birds the ability to fly. These indents prove that T-rexes where slowly evolving into birds, since they match. How did they, through genetic mutations caused by changes in the environment, and the need to survive. An god/s will to want them to evolve.. Birds didn't just magically pop up, dinosaurs slowly evolved down into them, hope that helped.... Peace

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Birds evolved before the dinosaurs died. There were well-established bird group by the late Cretaceous. While some taxa are extinct, others have living representatives.

novangelis

Because separate species evolved off of dinosaurs before they died. It's the same reason we exist even though homo erectus went extinct.

Jared

The resemblance of birds and dinosaurs is easy to see. The dinosaur being so large--as compared to a species of birds is related in finding food and shelter. I most often think that dinosaurs ate themselves out of existence. While the species of birds did not. Chances are best--that carnivores died off--leaving more room.

There were some ornithischina dinosaurs that had modified forelimbs. They were good runners. They developed feathers over time. You could imagine something like archaoepteryx, hesperornis etc.

Ishan26

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