{"id":19985,"date":"2022-09-21T13:40:51","date_gmt":"2022-09-21T11:40:51","guid":{"rendered":"https:\/\/c01.purpledshub.com\/bbcwildlife\/?post_type=purple_issue&#038;p=19985"},"modified":"2022-11-07T15:49:28","modified_gmt":"2022-11-07T14:49:28","slug":"dream-weavers","status":"publish","type":"post","link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/2022\/09\/21\/dream-weavers\/","title":{"rendered":"Dream weavers"},"content":{"rendered":"\n<p class=\"has-text-align-center intro\">Biologists discover jumping spiders experience rapid eye movement sleep by \u201cpeering into their heads\u201d <\/p>\n\n<figure class=\"no-tts wp-block-image article-in-image photo\"><img loading=\"lazy\" width=\"1625\" height=\"1762\" src=\"https:\/\/dj9jqhxgw9833.cloudfront.net\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203.jpg\" alt=\"\" class=\"no-tts wp-image-19983\" srcset=\"https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203.jpg 1625w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-277x300.jpg 277w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-944x1024.jpg 944w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-768x833.jpg 768w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-1417x1536.jpg 1417w\" sizes=\"(max-width: 1625px) 100vw, 1625px\" \/><figcaption>Male jumping spiders typically reach a body length of 6mm <\/figcaption><\/figure>\n\n<p class=\"sans-serif article-full-body\">J<span style=\"\">UMPING SPIDERS HAVE JOINED AN ELITE group of animals known to experience a phase of sleep associated with dreaming in humans. <\/span><\/p>\n\n<p class=\"article-full-body sans-serif\">Rapid eye movement (REM) sleep was known only among vertebrates and octopus until biologists led by Daniela R\u00f6\u00dfler at Germany\u2019s University of Konstanz quite literally peered into the heads of sleeping baby jumping spiders. Most invertebrates have immovable eyes, making REM sleep tricky to investigate. But jumping spiders can direct their gaze by moving their retinas, which can be seen through the temporarily translucent exoskeletons of spiderlings in the first few days after hatching. <\/p>\n\n<p class=\"article-full-body sans-serif\">The biologists report in <em>Proceedings <\/em><em>of <\/em><em>the <\/em><em>National <\/em><em>Academy <\/em><em>of <\/em><em>Sciences <\/em>that bursts of eye movement are accompanied by limb activity and muscle twitches, which are also seen in vertebrates. <\/p>\n\n<p class=\"article-full-body sans-serif\">In humans, REM sleep is also associated with dreaming. R\u00f6\u00dfler now plans to investigate whether the spiders\u2019 brain activity is heightened during bouts of REM. But she is cautious about this line of thought: \u201cIt is an enormous step to be wondering about dreams. I think this is amplified by our human bias and our own experience and imagining that \u2018dreaming\u2019 would look or feel the same in other animals. Animals experience the world differently, so a \u2018dream\u2019 is likely very different.\u201d<br><strong>Stuart Blackman <\/strong><\/p>\n\n<p><\/p>\n\n<hr class=\"no-tts wp-block-separator is-style-wide\"\/>\n\n<div class=\"no-tts wp-block-image article-in-image photo\"><figure class=\"no-tts alignleft size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/dj9jqhxgw9833.cloudfront.net\/uploads\/sites\/44\/2022\/09\/Daniela-RO\u0308BELA-PNG-2.png\" alt=\"\" class=\"no-tts wp-image-20768\" width=\"56\" height=\"56\" srcset=\"https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/Daniela-RO\u0308BELA-PNG-2.png 573w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/Daniela-RO\u0308BELA-PNG-2-300x300.png 300w, https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/Daniela-RO\u0308BELA-PNG-2-150x150.png 150w\" sizes=\"(max-width: 56px) 100vw, 56px\" \/><\/figure><\/div>\n\n<p>Daniela R\u00f6\u00dfler of Germany\u2019s University of Konstanz<\/p>\n\n<p><\/p>\n\n<p><\/p>\n\n<p class=\"footer\">Photos: SPIDER: LUKAS JONAITIS\/ALAMY<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Biologists discover jumping spiders experience rapid eye movement sleep by \u201cpeering into their heads\u201d <\/p>\n","protected":false},"author":24,"featured_media":19983,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","purple_page_number":"13","purple_custom_meta_purple_page_number":"13","purple_seq_number":"1","purple_custom_meta_purple_seq_number":"1","purple_source_article":"article_13-1.xml","purple_custom_meta_purple_source_article":"article_13-1.xml","purple_source_issue":"October-2022","purple_custom_meta_purple_source_issue":"October-2022","purple_external_id":"October-2022-13-1","purple_custom_meta_purple_external_id":"October-2022-13-1","purple_issue_code":"|0000087236||","purple_custom_meta_purple_issue_code":"|0000087236||","purple_android_product":"com.im.wildlife.496","purple_custom_meta_purple_android_product":"com.im.wildlife.496","purple_ios_product":"com.im.wildlife.496","purple_custom_meta_purple_ios_product":"com.im.wildlife.496","purple_web_product":"","purple_custom_meta_purple_web_product":"","purple_publication_id":"58d61955-0ac4-406c-83f1-ab6f21d86b70","purple_migrated":"","kt_blocks_editor_width":"","apple_news_api_created_at":"2022-09-22T08:25:00Z","apple_news_article-theme":"","apple_news_api_id":"f6b164fe-715a-4413-89f1-bcbf4d378c79","apple_news_api_modified_at":"2022-09-23T09:10:01Z","apple_news_api_revision":"AAAAAAAAAAAAAAAAAAAABw==","apple_news_api_share_url":"https:\/\/apple.news\/A9rFk_nFaRBOJ8by_TTeMeQ","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":true,"apple_news_is_preview":true,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_article_theme":"","apple_news_sections":"[]"},"categories":[25],"tags":[14],"apple_news_notices":[],"featured_image_src":"https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203.jpg","author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/author\/importmanagerhubsprylab-com\/"},"acf":{"readingTimeMinutes":"2","apple_news_title":""},"uagb_featured_image_src":{"full":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203.jpg",1625,1762,false],"thumbnail":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-150x150.jpg",150,150,true],"medium":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-277x300.jpg",277,300,true],"medium_large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-768x833.jpg",768,833,true],"large":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-944x1024.jpg",800,868,true],"1536x1536":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203-1417x1536.jpg",1417,1536,true],"2048x2048":["https:\/\/c01.purpledshub.com\/uploads\/sites\/44\/2022\/09\/667b4772-3805-4321-bcfa-bea996a67203.jpg",1625,1762,false]},"uagb_author_info":{"display_name":"importmanagerhub@sprylab.com","author_link":"https:\/\/c01.purpledshub.com\/bbcwildlife\/author\/importmanagerhubsprylab-com\/"},"uagb_comment_info":0,"uagb_excerpt":"Biologists discover jumping spiders experience rapid eye movement sleep by \u201cpeering into their 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