The Denver area's most common dinosaur fossil is Triceratops who walked the 66-million-year-old Cretaceous forests that once flourished where Coors Field now stands.
From saber-tooth cats to duck-bill dinosaurs, see the ancient animals that once called Los Angeles home.
See why even millions of years ago, it was always bigger in Texas - from scimitar-toothed cats, the largest ocean-going reptile ever and an armadillo as big as a car.
See what lived in the Washington DC area before all the monuments, including dinosaurs, the ferocious Bear Dog and the huge Megalodon shark.
Prehistoric Denver (01:43)
Clash of the Dinosaurs (02:36)
Dinosaurs (02:24)
Dinosaurs (01:02)
Dinosaurs (00:54)
Prehistoric Sharks (03:26)
Clash of the Dinosaurs (02:24)
Dinosaurs (02:29)
Clash of the Dinosaurs (02:27)
Clash of the Dinosaurs (01:54)
Dinosaurs (02:59)
Prehistoric Los Angeles (01:46)
When Dinosaurs Roamed America DVD
$14.95
Clash of the Dinosaurs DVD
$19.95
$14.99
Dragons: A Fantasy Made Real DVD
$21.95
$9.97
Watch the best dinosaur video around, featuring highlights from the best of Discovery Channel's dinosaur, ancient life and Earth history programs as well as the latest dino stories from Discovery News.
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