Created by: Tyrrel Ly
Millions of years ago dinosaurs were as big as two story houses!!
But Dinosaur experts and Archeologist been digging the bones.
People like Bob Strauss and Nina Rastogi.
Dinosaur expert and writers teaching about dinosaurs.
Dinosaurs lived "EVERYWHERE"!!!!!
Theorys that they are big is because,
*Extra oxygen *Competition for food * Lots of vegetation