Children watch a life-sized Tyrannosaurus Rex dinosaur model in Vienna February 7, 2014. The travelling exhibition "World of Dinosaurs" shows some 50 life-sized dinosaur models and runs in Vienna ... more 
Children watch a life-sized Tyrannosaurus Rex dinosaur model in Vienna February 7, 2014. The travelling exhibition "World of Dinosaurs" shows some 50 life-sized dinosaur models and runs in Vienna until February 23. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: SCIENCE TECHNOLOGY SOCIETY) less 
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Reuters | Photo By HEINZ-PETER BADER / REUTERS
Fri, Feb 7, 2014 10:17 AM EST