Stegasaurus and Tyrannosaurs Rex

The stegasaurus and Tyrannosaurs Rex never met because the stegasaurus went extinct in the Jurassic period and the Tyrannosaurs  Rex was around in the Cretaceous period. When the Tyrannosaurs Rex was around, the Stegasaurus was extinct for 80 million years. 

We are closer in time to Tyrannosaurs Rex than the Tyrannosaurs Rex was to stegasaurus. The Gap between Us and Tyrannosaurs Rex was 66 million years. The Gap Between Tyrannosaurus rex and stegasaurus is 80 million years. 

In the movie Jurassic park, Tyrannosaurs Rex didn't belong there because it wasn't from that time period. 

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Largest Ever Flying Animal

The Largest flying animal to ever exist as far as we know is the Quetzalcoatlus northropi, it was a type of pterosaur. It went extinct at end of the late Cretaceous period, the end of the dinosaur era. It was huge, the creature is thought to weigh about 250 kg and stood about 5 or 6 meters tall when not flying; as tall as a giraffe. 

It not fully understood how they were able to fly but it is thought they would use a spring like muscle contraction to launch itself into the air. The 10 to 11 meter long wingspan would have helped it to stay airborne. 

If it existed today, it would likely be mistaken for a small airplane because of its size. 

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