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<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/4923/B.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='A Glimpse into Ice Age History' data-article-id='5447'><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='7208'>Scientists say they have discovered the oldest DNA on record.</span> <span data-start-time='7208' data-end-time='19604'> It was found in the teeth of mammoths that lived in northeastern Siberia up to 1.2 million years ago.</span> <span data-start-time='19604' data-end-time='26521'>A mammoth was a kind of early elephant that lived during the Ice Age.</span> <span data-start-time='26521' data-end-time='33771'>The discovery may lead to a greater understanding of the long-dead species.</span> <span data-start-time='33771' data-end-time='41896'>DNA is the substance that carries genetic information in the cells of living things.</span> <span data-start-time='41896' data-end-time='50813'> The researchers say they recovered and sequenced DNA from the remains of three mammoths.</span> <span data-start-time='50813' data-end-time='60354'>The remains, which were contained in permanently frozen ground, were discovered beginning in the 1970s.</span> <span data-start-time='60354' data-end-time='68833'>But scientists at the time did not have the ability to find and remove the DNA.</span> <span data-start-time='68833' data-end-time='77958'>The oldest of the three mammoths was discovered near the Krestovka River in Siberia.</span> <span data-start-time='77958' data-end-time='83333'> It was about 1.2 million years old.</span> <span data-start-time='83333' data-end-time='91771'>Another, from near the Adycha River, was between 1 to 1.2 million years old.</span> <span data-start-time='91771' data-end-time='100500'>The third, from near the Chukochya River, was around 700,000 years old.</span> </p></div><div class='control-buttons-sticky' style='display:none;'><div class='control-buttons'><button title='Back' class='back' disabled='disabled'></button><button title='Play' class='play' disabled='disabled'></button><button title='Pause' class='pause' style='display:none;'></button><button title='Forward' class='forward' disabled='disabled'></button><button class='finished-reading' style='display:none;'>Done</button></div></div></div><div id='article-media'><div id='media-image'><img src='https://news-app-production.s3.amazonaws.com/articles/4923/B.jpg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=16911 data-hint-location='19604' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/what_is_a_mammoth.wav'>What is a mammoth?</div><div class='choices' data-correct-choice=' a kind of early elephant that lived during the Ice Age'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/a_large_cave_painting_of_early_elephants.wav'><span>a large cave painting of early elephants</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/_a_kind_of_early_elephant_that_lived_during_the_ice_age.wav'><span> a kind of early elephant that lived during the Ice Age</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/an_anthropologist_who_studies_fossils.wav'><span>an anthropologist who studies fossils</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/a_history_teacher_.wav'><span>a history teacher </span></div></div></div><div class='multiple_choice_question question-container' data-question-id=16912 data-hint-location='41896' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/_how_many_ancient_mammoths_remains_were_found.wav'> How many ancient mammoths remains were found?</div><div class='choices' data-correct-choice='3'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/1.wav'><span>1</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/3.wav'><span>3</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/2.wav'><span>2</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/7.wav'><span>7</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=16913 data-hint-location='7208' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/_the_ancient_mammoth_remains_were_found_in__blank_.wav'> The ancient mammoth remains were found in <span class='blank'>Siberia</span>.</div><div class='choices' data-correct-choice='Siberia'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/romania.wav'><span>Romania</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/alaska.wav'><span>Alaska</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/siberia.wav'><span>Siberia</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/4923/mexico.wav'><span>Mexico</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button 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