Perdew Laura, <br/><br/>
Extinction :  What Happened to the Dinosaurs, Mastodons, and Dodo Birds? With 25 Projects / 
Laura Perdew. 
 - LaVergne :  Nomad Press,  (c)2017. 
 - 1 online resource. 
 - "Build it yourself" series .
<br/><br/> Electronic book. 
<br/><br/>Includes bibliographies and index. 
<br/><br/> In Earth's 4.5-billion-year history, more than 5 billion species have gone extinct, some of them at the same time. How can 75-95 percent of species on Earth disappear at one time? What event could cause such a massive die off? These are the questions that scientists have asked for decades as they explore the causes of extinction. In Extinction: What Happened to the Dinosaurs, Mastodons, and Dodo Birds? readers ages 9 to 12 learn about the scientific detective work scientists perform to answer these questions and find the culprit behind mass extinctions. 
<br/><br/>
<br/><br/><label>ISBN: </label>9781619305595 9781619305588 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass extinctions.<br/>Extinction (Biology)
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic Books.
<br/><br/><label>LC Class. No.: </label>QE721  / .E985 2017