{"id":10662,"date":"2023-12-03T22:00:00","date_gmt":"2023-12-03T22:00:00","guid":{"rendered":"https:\/\/modernsciences.org\/staging\/4414\/?p=10662"},"modified":"2023-11-24T06:58:21","modified_gmt":"2023-11-24T06:58:21","slug":"scientists-discover-new-dinosaur-species-with-bird-like-sleeping-position","status":"publish","type":"post","link":"https:\/\/modernsciences.org\/staging\/4414\/scientists-discover-new-dinosaur-species-with-bird-like-sleeping-position\/","title":{"rendered":"Scientists Discover New Dinosaur Species with Bird-Like Sleeping Position"},"content":{"rendered":"\n<div class=\"wp-block-group has-gray-200-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h1 id=\"at-a-glance\" class=\"wp-block-heading\">At a Glance<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Scientists have discovered a new species of dinosaur, <em>Jaculinykus yaruui<\/em>, that shares a sleeping position with modern birds.<\/li>\n\n\n\n<li class=\"\">The fossil, found in Mongolia\u2019s Gobi Desert, belongs to the Alvarezsauridae family, previously thought to be flightless birds but now classified as non-avian Maniraptoran dinosaurs.<\/li>\n\n\n\n<li class=\"\">The fossil is nearly complete and well-preserved, providing valuable insights into the anatomy and behavior of this dinosaur species.<\/li>\n\n\n\n<li class=\"\"><em>J. yaruui<\/em> stood at approximately one meter tall and weighed around 30 kilograms.<\/li>\n\n\n\n<li class=\"\">The dinosaur\u2019s unique sleeping position, with its neck and tail bent and hind limbs folded, suggests that Maniraptorans may have adopted similar sleeping positions for comfort and heat preservation, providing evidence of bird-like traits among avian ancestors.<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img  loading=\"lazy\"  decoding=\"async\"  width=\"1024\"  height=\"683\"  src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABAQMAAAAl21bKAAAAA1BMVEUAAP+KeNJXAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAApJREFUCNdjYAAAAAIAAeIhvDMAAAAASUVORK5CYII=\"  alt=\"\"  class=\"wp-image-10663 pk-lazyload\"  style=\"width:800px;height:auto\"  data-pk-sizes=\"auto\"  data-ls-sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"  data-pk-src=\"https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-1024x683.png\"  data-pk-srcset=\"https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-1024x683.png 1024w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-1536x1025.png 1536w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-380x253.png 380w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-800x534.png 800w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-1160x774.png 1160w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-80x53.png 80w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-760x507.png 760w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-1600x1067.png 1600w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-600x400.png 600w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-300x200.png 300w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position-768x512.png 768w, https:\/\/modernsciences.org\/staging\/4414\/wp-content\/uploads\/2023\/11\/Scientists-Discover-New-Dinosaur-Species-with-Bird-Like-Sleeping-Position.png 1619w\" ><figcaption class=\"wp-element-caption\">&#8220;An illustration of a sleeping alvarezsaurid dinosaur, Jaculinykus, like modern birds.&#8221; by\u00a0Seiji Yamamoto from\u00a0<a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0293801\" target=\"_blank\" rel=\"noopener\" title=\"PLOS ONE\u00a0(2023)\"><em>PLOS ONE<\/em>\u00a0(2023)<\/a>. DOI: <a href=\"https:\/\/doi.org\/10.1371\/journal.pone.0293801\" target=\"_blank\" rel=\"noopener\" title=\"10.1371\/journal.pone.0293801\">10.1371\/journal.pone.0293801<\/a> is licensed under\u00a0<a href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\" target=\"_blank\" rel=\"noopener\" title=\"\">CC BY 4.0<\/a>.<\/figcaption><\/figure>\n<\/div>\n\n\n<p class=\"\">A team of scientists from <a href=\"https:\/\/www.global.hokudai.ac.jp\/\" target=\"_blank\" rel=\"noopener\" title=\"\">Hokkaido University<\/a>, the <a href=\"https:\/\/www.museum.hokudai.ac.jp\/english\/\" target=\"_blank\" rel=\"noopener\" title=\"\">Hokkaido University Museum<\/a>, <a href=\"https:\/\/www.ncsu.edu\/\" target=\"_blank\" rel=\"noopener\" title=\"\">North Carolina State University<\/a>, and <a href=\"https:\/\/en.ac.mn\/\" target=\"_blank\" rel=\"noopener\" title=\"\">the Mongolian Academy of Sciences<\/a> has discovered a new species of dinosaur that shares a sleeping position with modern birds. The fossil, named <em>Jaculinykus yaruui<\/em>, belongs to the Alvarezsauridae family, which were previously thought to be flightless birds but are now classified as non-avian Maniraptoran dinosaurs. The fossil was found in the Barun Goyot Formation in Mongolia&#8217;s Gobi Desert and is estimated to be around 71 million years old.<\/p>\n\n\n\n<p class=\"\">The fossil is exceptionally well-preserved, providing valuable insights into the anatomy and behavior of this dinosaur species. <em>J. yaruui<\/em> stood at approximately one meter tall and weighed around 30 kilograms. What sets this fossil apart is its unique sleeping position. The dinosaur&#8217;s neck and tail were bent, and its hind limbs were folded under its pelvis, resembling the sleeping position of modern birds. This suggests that Maniraptorans, a group of dinosaurs that includes birds&#8217; ancestors, may have adopted similar sleeping positions for comfort and heat preservation.<\/p>\n\n\n\n<p class=\"\">Previous research has shown that modern birds curl up when they sleep to stay warm. The discovery of <em>J. yaruui<\/em> sleeping in a similar position provides further evidence that this behavior may have been inherited from their dinosaur ancestors. This finding sheds light on the evolution of bird-like traits and their distribution among avian ancestors. The study highlights the importance of studying fossilized remains to gain insights into the behavior and ecology of ancient species.<\/p>\n\n\n\n<p class=\"\">This novel research was published in <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0293801\" target=\"_blank\" rel=\"noopener\" title=\"\"><em>PLOS ONE<\/em><\/a>.<\/p>\n\n\n\n<h1 id=\"references\" class=\"wp-block-heading\">References<\/h1>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"\">Kubo, K., Kobayashi, Y., Chinzorig, T., &amp; Tsogtbaatar, K. (2023). A new alvarezsaurid dinosaur (Theropoda, Alvarezsauria) from the Upper Cretaceous Baruungoyot Formation of Mongolia provides insights for bird-like sleeping behavior in non-avian dinosaurs. <em>PLOS ONE<\/em>, <em>18<\/em>(11), e0293801. <a href=\"https:\/\/doi.org\/10.1371\/journal.pone.0293801\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/doi.org\/10.1371\/journal.pone.0293801<\/a><\/li>\n\n\n\n<li class=\"\">Yirka, B. &amp; Phys.org. (2023, November 23). <em>Fossil unearthed in Mongolia\u2019s Gobi Desert suggests some dinosaurs slept in same position as modern birds<\/em>. Phys.Org; Phys.org. <a href=\"https:\/\/phys.org\/news\/2023-11-fossil-unearthed-mongolia-gobi-dinosaurs.html\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/phys.org\/news\/2023-11-fossil-unearthed-mongolia-gobi-dinosaurs.html<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"At a Glance A team of scientists from Hokkaido University, the Hokkaido University Museum, North Carolina State University,&hellip;\n","protected":false},"author":2,"featured_media":10663,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[11],"tags":[149,29,447,180,25],"class_list":{"0":"post-10662","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-nature","8":"tag-bird","9":"tag-dinosaur","10":"tag-evolution","11":"tag-fossil","12":"tag-paleontology","13":"cs-entry","14":"cs-video-wrap"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/10662","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/comments?post=10662"}],"version-history":[{"count":1,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/10662\/revisions"}],"predecessor-version":[{"id":10664,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/posts\/10662\/revisions\/10664"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/media\/10663"}],"wp:attachment":[{"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/media?parent=10662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/categories?post=10662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/modernsciences.org\/staging\/4414\/wp-json\/wp\/v2\/tags?post=10662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}