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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/5849/T8.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Study: Elephant Seals Sleep Only Two Hours a Day' data-article-id='6457'><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='6792'>Sleep is an important biological process for people and animals.</span> <span data-start-time='6792' data-end-time='13042'>However, much remains unknown about the process.</span> <span data-start-time='13042' data-end-time='18896'>Humans spend about one third of their lives sleeping. </span> <span data-start-time='18896' data-end-time='26875'>But some mammals, like the northern elephant seal, survive with much less sleep.</span> <span data-start-time='26875' data-end-time='36146'>Researchers in a new study described the unusual sleep pattern of these ocean animals. </span> <span data-start-time='36146' data-end-time='47792'>They found that when these mammals go to feed on trips that can last seven months, they sleep just two hours. </span> <span data-start-time='47792' data-end-time='62604'>Those two hours of sleep are made up of short moments of rest lasting only 10 minutes each as they dive deep to avoid predators. </span> <span data-start-time='62604' data-end-time='70896'>The only other mammals known to get so little sleep are African elephants.</span> <span data-start-time='70896' data-end-time='89896'>The seals&rsquo; sleep time during ocean trips is different from the 10 hours a day they spend sleeping on the coast during mating season at places like California&rsquo;s Ao Nuevo beach.</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/5849/T8.jpeg'/></div></div><div id='question-content' style='display:none;'><div class='sentence_completion_question question-container' data-question-id=19408 data-hint-location='13042' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/humans_spend_about_one_third_of_their_lives__blank__.wav'>Humans spend about one third of their lives <span class='blank'>sleeping</span>. </div><div class='choices' data-correct-choice='sleeping'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/screaming.wav'><span>screaming</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/sleeping.wav'><span>sleeping</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/sunbathing.wav'><span>sunbathing</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/sneaking.wav'><span>sneaking</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=19409 data-hint-location='62604' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/what_other_animal_is_known_to_get_a_similarly_little_amount_of_sleep.wav'>What other animal is known to get a similarly little amount of sleep?</div><div class='choices' data-correct-choice='African elephant'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/fruit_bat.wav'><span>fruit bat</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/golden_retriever.wav'><span>golden retriever</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/field_mouse.wav'><span>field mouse</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/african_elephant.wav'><span>African elephant</span></div></div></div><div class='vocabulary_question question-container' data-question-id=19410 data-hint-location='47792' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/which_of_the_following_is_a_definition_of_the_word_predator.wav'>Which of the following is a definition of the word predator?</div><div class='choices' data-correct-choice='an animal that lives by killing and eating other animals'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/an_animal_capable_of_flight.wav'><span>an animal capable of flight</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/an_extinct_animal.wav'><span>an extinct animal</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/an_animal_that_has_reached_full_maturity.wav'><span>an animal that has reached full maturity</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5849/an_animal_that_lives_by_killing_and_eating_other_animals.wav'><span>an animal that lives by killing and eating other animals</span></div></div></div><div class='question-buttons'><button class='skip-button'></button><button class='hint-button'></button><button class='speak-button'></button></div></div></div>

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