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Read articles, including Science News stories written for ages 9-14, on the SNK website.
Small beginnings
The idea that dinosaurs originated in what is now South America and evolved quickly is bolstered by similarities between a newly found fossil of Tawa hallae, above, and an evolutionary predecessor (scale bar represents 25 centimeters). Credit: Profile of head: Jorge Gonzales; skeletal reconstruction: S. Nesbitt

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