The world's animal populations have decreased by more than two-thirds since 1970, recent research has said. The report comes from the World Wildlife Fund (WWF), an environmental group based in Switzerland. The WWF used 2018 information from the Zoological Society of London (ZSL). The London group provided information on 32,000 wildlife populations which included more than 5,000 species. The researchers found that population sizes had declined by 69 percent on average. They said loss of forests, human exploitation of the environment, pollution, and climate change were the biggest causes of the loss.
Title: Study: Animal Numbers Have Decreased by 69 Percent since 1970
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/5695/A21.wav' data-capture-url='//staging.analytics.lingraphica.com/events/capture_news' data-article-title='Study: Animal Numbers Have Decreased by 69 Percent since 1970' data-article-id='6266'><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='9979'>The world's animal populations have decreased by more than two-thirds since 1970, recent research has said.</span> <span data-start-time='9979' data-end-time='18188'>The report comes from the World Wildlife Fund (WWF), an environmental group based in Switzerland. </span> <span data-start-time='18188' data-end-time='27771'>The WWF used 2018 information from the Zoological Society of London (ZSL).</span> <span data-start-time='27771' data-end-time='37354'>The London group provided information on 32,000 wildlife populations which included more than 5,000 species. </span> <span data-start-time='37354' data-end-time='44938'>The researchers found that population sizes had declined by 69 percent on average. </span> <span data-start-time='44938' data-end-time='55625'>They said loss of forests, human exploitation of the environment, pollution, and climate change were the biggest causes of the loss.</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/5695/A21.jpeg'/></div></div><div id='question-content' style='display:none;'><div class='vocabulary_question question-container' data-question-id=18968 data-hint-location='44938' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/which_of_the_following_is_a_definition_of_the_word_exploitation.wav'>Which of the following is a definition of the word exploitation?</div><div class='choices' data-correct-choice='the action of making use of and benefiting from resources'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/the_action_of_making_use_of_and_benefiting_from_resources.wav'><span>the action of making use of and benefiting from resources</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/an_extended_period_of_leisure_and_recreation_especially_one_spent_away_from_home_or_in_traveling.wav'><span>an extended period of leisure and recreation, especially one spent away from home or in traveling</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/the_action_of_officially_excluding_someone_from_something.wav'><span>the action of officially excluding someone from something</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/an_illustration.wav'><span>an illustration</span></div></div></div><div class='multiple_choice_question question-container' data-question-id=18969 data-hint-location='37354' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/by_how_much_did_researchers_find_that_population_sizes_decreased.wav'>By how much did researchers find that population sizes decreased?</div><div class='choices' data-correct-choice='sixty-nine percent'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/sixtynine_percent.wav'><span>sixty-nine percent</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/fifty_percent.wav'><span>fifty percent</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/ninetysix_percent.wav'><span>ninety-six percent</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/sixtyeight_percent.wav'><span>sixty-eight percent</span></div></div></div><div class='sentence_completion_question question-container' data-question-id=18970 data-hint-location='27771' style='display:none;'><div class='question' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/the_london_group_provided_information_on_32000_wildlife_populations_which_included_more_than_5000__blank__.wav'>The London group provided information on 32,000 wildlife populations which included more than 5,000 <span class='blank'>species</span>. </div><div class='choices' data-correct-choice='species'><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/species.wav'><span>species</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/spacers.wav'><span>spacers</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/sporks.wav'><span>sporks</span></div><div class='choice' data-sound-name='https://news-app-production.s3.amazonaws.com/articles/5695/pieces.wav'><span>pieces</span></div></div></div><div class='question-buttons'><button 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