Scientists in Chile have discovered the bones of a dinosaur they say used its unusual tail as a deadly weapon. Researchers say the dog-sized creature had a tail weapon unlike those seen on any other animal. The tail had a series of “blades” on each side that could be used to cut its enemies. At first, the scientists thought the plant-eating dinosaur might have belonged to a similar species called stegosaurus. But after studying pieces of skull and examining DNA, the scientists decided the dinosaur must be from a new species. The researchers named the dinosaur stegouros because of its similarities to stegosaurus. The find is described in a study recently published in Nature. Alex Vargas was the lead writer of the study. He told The Associated Press that the animal’s blade-like tail could be used as a cutting weapon similar to those used by Aztec warriors. “It’s a really unusual weapon,” said Vargas, a scientist with the University of Chile. He said information on the species should be added to books on prehistoric animals for children. “It just looks crazy,” Vargas added. The bones, or fossil, is from about 72 million to 75 million years ago, the team said. Researchers believe the animal is part of the ankylosaur family of dinosaurs. They are believed to have walked the Earth throughout the Jurassic and Cretaceous periods.
Title: Scientists Discover New Dinosaur with Dangerous Tail
Content: <div id='article-page'><div id='article-content' data-media-url='//news-app-staging.s3.amazonaws.com' data-base-url='//news-app-staging.herokuapp.com' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/A.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Scientists Discover New Dinosaur with Dangerous Tail' data-article-id='5966'><script src='//news-app-staging.herokuapp.com/javascripts/getscripts.js'></script><link rel='stylesheet' href='//news-app-staging.herokuapp.com/stylesheets/article.css' type='text/css' /><div class='article'><p><span data-start-time='0' data-end-time='13750'>Scientists in Chile have discovered the bones of a dinosaur they say used its unusual tail as a deadly weapon.</span> <span data-start-time='13750' data-end-time='24833'>Researchers say the dog-sized creature had a tail weapon unlike those seen on any other animal. </span> <span data-start-time='24833' data-end-time='34333'>The tail had a series of “blades” on each side that could be used to cut its enemies.</span> <span data-start-time='34333' data-end-time='46500'>At first, the scientists thought the plant-eating dinosaur might have belonged to a similar species called stegosaurus. </span> <span data-start-time='46500' data-end-time='60104'>But after studying pieces of skull and examining DNA, the scientists decided the dinosaur must be from a new species.</span> <span data-start-time='60104' data-end-time='70188'>The researchers named the dinosaur stegouros because of its similarities to stegosaurus.</span> <span data-start-time='70188' data-end-time='77229'>The find is described in a study recently published in Nature. </span> <span data-start-time='77229' data-end-time='82188'>Alex Vargas was the lead writer of the study. </span> <span data-start-time='82188' data-end-time='97042'>He told The Associated Press that the animal’s blade-like tail could be used as a cutting weapon similar to those used by Aztec warriors.</span> <span data-start-time='97042' data-end-time='105958'>“It’s a really unusual weapon,” said Vargas, a scientist with the University of Chile. </span> <span data-start-time='105958' data-end-time='115688'>He said information on the species should be added to books on prehistoric animals for children. </span> <span data-start-time='115688' data-end-time='120563'>“It just looks crazy,” Vargas added.</span> <span data-start-time='120563' data-end-time='132229'>The bones, or fossil, is from about 72 million to 75 million years ago, the team said. </span> <span data-start-time='132229' data-end-time='140792'>Researchers believe the animal is part of the ankylosaur family of dinosaurs. </span> <span data-start-time='140792' data-end-time='149438'>They are believed to have walked the Earth throughout the Jurassic and Cretaceous periods. </span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button 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data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/elephantsized.wav'><span>elephant-sized</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/frogsized.wav'><span>frog-sized</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/catsized.wav'><span>cat-sized</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/dogsized.wav'><span>dog-sized</span></div></div></div><div class='vocabulary_question question-container' data-question-id=18266 data-hint-location='0' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/what_is_a_dinosaur.wav'>What is a dinosaur?</div><div class='choices' data-correct-choice='a very large animal that used to live millions of years ago'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/a_very_large_animal_that_used_to_live_millions_of_years_ago.wav'><span>a very large animal that used to live millions of years ago</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/a_person_qualified_to_treat_the_diseases_and_conditions_that_affect_the_teeth_and_gums.wav'><span>a person qualified to treat the diseases and conditions that affect the teeth and gums</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/the_basic_unit_of_a_chemical_element.wav'><span>the basic unit of a chemical element</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/a_warmblooded_vertebrate_animal.wav'><span>a warm-blooded vertebrate animal</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=18268 data-hint-location='140792' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/they_are_believed_to_have_walked_the__blank__throughout_the_jurassic_and_cretaceous_periods_.wav'>They are believed to have walked the <span class='blank'>Earth</span> throughout the Jurassic and Cretaceous periods. </div><div class='choices' data-correct-choice='Earth'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/ocean.wav'><span>ocean</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/dust.wav'><span>dust</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/earth.wav'><span>Earth</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5374/playground.wav'><span>playground</span></div></div></div><div class='question-buttons'><button 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