The new fossil was unearthed in a remote part of Argentinian Patagonia—and had teeth comparable to a T. rex, says National ...

Named the “king of the tyrant lizards,” T. rex was built to rule. Find out how these dinosaurs lived, what made them so vicious, and what we’re still learning about them today.

The newly unearthed fossil has teeth that are comparable to a T. rex, according to National Geographic Explorer Diego Pol.