Sleep is an important biological process for people and animals. However, much remains unknown about the process. Humans spend about one third of their lives sleeping. But some mammals, like the northern elephant seal, survive with much less sleep. Researchers in a new study described the unusual sleep pattern of these ocean animals. They found that when these mammals go to feed on trips that can last seven months, they sleep just two hours. 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. The only other mammals known to get so little sleep are African elephants. The seals’ 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’s Ao Nuevo beach.
Title: Study: Elephant Seals Sleep Only Two Hours a Day
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/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’ 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’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 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