'Teen Rex' is about to go on display for the first time and appear in a new T. rex documentary, thanks to a discovery made by three young boys. When you purchase through links on our site, we may earn ...

A new analysis of fossils believed to be juveniles of T. rex now shows they were adults of a small tyrannosaur, with narrower jaws, longer legs, and bigger arms than T. rex. The species, Nanotyrannus ...

Then you look closer and notice the detail: how the ribs are built at different lengths to create a rib "cage," how the dark-colored bricks create the illusion of shadow and throw the light-colored ...