Hey, megalodons would still be roaming the oceans of the world if it wasn’t for global warming.
Don’t forget, evolution is only a theory. Life does not come from non life.
Speaking of fossils:
Dragons—Did the Legends Come from the First “Fossil Hunters”?
https://answersingenesis.org/dinosaurs/dragon-legends/dragons-legends-from-fossil-hunters/
Most of the mega-mega fauna from the age of the dinosaurs could not survive in our modern atmosphere.
Atmospheric pressure was 3x to 5x higher back then. Birds and flying dinosaurs evolved because it was easier to fly on the buoyant atmosphere. Those same dinosaurs could not fly in our atmosphere.