The largest-ever analysis of Tyrannosaurus rex fossils suggests the giant and fierce Cretaceous predator was a late bloomer, taking 35 to 40 years to reach maturity. The findings also further the ...

After T. rex was first described in 1905, the world’s most charismatic megafossil could have turned out to be a mere curiosity. Tyrannosaurus rex is still the biggest, baddest land predator of all ...