The theory is that dinosaurs were the ancestors of modern birds. That’s about as reasonable as saying that modern scientists evolved from dodo birds. They should show how many species of birds have or had fearsome teeth if they want to support the idea.
Of course, ordinary mortals aren’t allowed to argue with scientists because they alone are able to think. If they say there’s global warming or anything else, believe it. Otherwise, you’re anti-science.
Exactly. Please produce the fossil evidence which shows the gradual evolutionary shift from toothy jaws, into toothless beaks.