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T Rex: This Dino Was Not a Runner (1:34)
T-Rex was probably a slow runner or even just a walker. No, really -- there's science behind it!
T Rex: Dinosaur Posture (1:34)
Enough bones remained of this dinosaur to determine it was a T-Rex.
T Rex: Brain Clues (1:09)
The skull of the T-Rex provides important clues to the animal's brain.
T Rex: How Bones are Buried (0:44)
See how ancient fossil evidence was preserved in geologic time.
Velociraptor as predators (1:04)
Velociraptors could slice and dice with the best of them. Find out more about these killers.
