Something to ponder.....
The length of time between the existence of the Stegosaurus and the Tyrannosaurus rex is longer than the length of time between between the existence of the Tyrannosaurus rex and yourself.
| StegosaurusLate Jurassic 155-150 million years ago |
...approx. 80 million years go by...
Tyrannosaurus rexLate Cretaceous 70-65 million years ago | 
|
...approx. 65 million years go by...
| Homo sapiens (us)Middle Paleolithic about 200,000 years ago-present |
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