The Mummy of All Dinosaurs Compare and Contrast Careful Work

Careful Work © Clipart.com Scientists are very

careful when they © iClipart work on dinosaur presented by Science a-z a division of Learning A-Z fossils. They use bright The Mummy of All Dinosaurs lights and small tools. By Jane Sellman They use toothbrushes March 2008: Scientists have found the most to clean away dirt. complete dinosaur mummy ever. A dinosaur They do not want to © Louis Tremblay mummy is a kind of fossil. A fossil is a living hurt the fossils! It thing that died and turned into rock. A mummy takes a long time to Tyler Lyson, who found the dinosaur fossil has bones and skin or muscles. With this uncover a fossil. mummy, works on a fossil. mummy, even the insides turned into rock. Scientists are Compare and Contrast learning amazing things from this mummy. © National Geographic Television Art and Animation,

Julius T. Csotonyi and 3D model by 422 South Scientists have T. rex Hadrosaur learned that • Length: 40’ • Length: 36’ dinosaurs were

• Speed: 20 mph • Speed: 28 mph © Louis Tremblay • Teeth: pointed for • Teeth: ﬂat for even bigger than tearing meat chewing plants we thought!

How else can you compare these two dinosaurs? See Mummy of All Dinos Tyler Lyson (on the right) uses a jackhammer

© Learning A–Z, Inc. All rights reserved. 4 www.sciencea-z.com 1 Mummy of All Dinos Continued from page 1 Writing Prompt: There was a little space between each piece of How is this the mummy’s backbone. Until now, scientists put together dinosaur backbones with no space hadrosaur skin © National Geographic, Tyler Lyson between pieces. Now museums will have to take like skin on apart their dinosaurs and put them together some animals again. Every dinosaur will be a lot longer! today? How is it different? Scientists were surprised to see that this mummy dinosaur had stripes. The stripes may HadrosaurHadrosaur have helped it hide behind trees. Maybe other dinosaurs had spots or bright colors! The dinosaur mummy was a hadrosaur. A hadrosaur is a dinosaur that had a The mummy had big muscles in its behind. mouth like These muscles a duck’s bill. let it run 28 Hadrosaurs miles an hour! ate plants. It could outrun a They could Tyrannosaurus rex! be 40 feet People will study long. That’s this mummy a long as long as a © Todd Marshall time. There is a lot school bus!