It's not as big as a Tyrannosaurus rex, but you wouldn't want to have met one. The 75-foot long Apatosaurus was found 70 miles north of Laramie in 1901. Comparing the two dinosaurs demonstrataes that being a predator in the Jurassic wasn't easy, even with all those teeth and claws. The Allosaurus is the latest addition to hundreds of plant and animal fossils and mineral specimens on exhibit at the UW Geological Museum. Wyoming is rich in prehistoric animal fossils because of the uplifting of the Rocky Mountains millions of years ago, which exposed Mesozoic and Cenozoic Era rock formations where dinosaur and early mammal fossils are easily discovered.
Evolution is change through time.
They learn that rhinos, mammoths, camels and horses also once roamed the land. Some of the plant and animal species that once live here adapted to changes, others are extinct.