T. Rex Might Have Had Close Cousins.

The article reports on a paper published in an early 2022 issue of "Evolutionary Biology," stating that the Tyrannosaurus rex dinosaur specie should be divided into three species to include T. imperator and T. regina. According to paleontologist Gregory Paul, the report will affect the paleontology community. Also cited is a brief history of T. rex, including the discovery of its fossils in the Hell Creek Formation in the U.S. in 1902.