A new study reveals that the Tyrannosaurus rex took up to 40 years to fully grow.

T rexes grew much more slowly than previously thought, taking several decades to reach their full size of around eight tonnes ...

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

Typically there's bonus content included for players who buy the expansion within its first couple months, which is happening ...