After the dinosaurs went extinct, why did they not return over time through evolution?

Question

I never learned much about evolution, so please do explain it like I’m 5

In: Biology

Answer 1

They key for the answer is in the extintion. Meteor have not killed dinosaurs. It killed giant flora. That had immence effect to oxigen level in atmosphere. Dinosaurs suffocated and that happend decades after impact.

Thus dinosaurs could not return by any means* as there were no longer conditions where they could live.

Note: birds **are** dinosaurs, crocodiles **are not**