Tyrannosaurus rex was a fearsome predator, but it sure wasn't a particularly fast mover. In fact, most humans could easily keep up with the dinosaur without breaking a sweat. T. rex would have covered ...

The T. rex population may have been smaller than scientists previously estimated, a new study says. The T. rex, or Tyrannosaurus rex if you want to get proper, is believed to have been the king of the ...

Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS using one of the services below. You've just tried to add this ...