
A 2021 estimate suggested that about 2.5 billion Tyrannosaurus rex lived, while only 32 relatively well-preserved post-juvenile specimens were then held in public museums — roughly one for every 80 million animals. And T. rex is one of the better represented large theropods
The fossil record captures an infinitesimal sliver of prehistory—we've found perhaps one T. rex skeleton for every 80 million that actually roamed the earth.














