Valley of the T. rex is a Discovery Channel documentary, featuring paleontologist Jack Horner, that aired on September 10, 2001. The program shows Horner with his digging team as they travel to Hell Creek Formation in search for dinosaur fossils, while also following Horner as he presents his view of the Tyrannosaurus as a scavenger rather than a predator, as it is often portrayed in popular culture.

Rexy Montero's Megalosaurus sounds speed up.

Credits to Kingofallkongs and Rexy Montero