'Like Godzilla, but actually real': study shows T. rex totaled 2.5 billion
Their analysis put the total number of T. rex individuals that ever existed at about 2.5 billion, including approximately 20,000 adults alive at any one time.
An approximately 67 million-year-old Tyrannosaurus Rex skeleton, one of the largest, most complete ever discovered and named "STAN" after paleontologist Stan Sacrison who first found it, is seen on display ahead of its public auction at Christie's in New York City, New York, U.S., September 15, 2020(photo credit: MIKE SEGAR / REUTERS)ByREUTERSUpdated: