{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Soft Tissue Found Inside a Dinosaur Bone!' data-url='/boclips/videos/5d8cfe6f096ca853ce6caf2d' data-video-url='/boclips/videos/5d8cfe6f096ca853ce6caf2d' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nSoft Tissue Found Inside a Dinosaur Bone!\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30359599\" href=\"/search?publisher_ids%5B%5D=30359599\"\u003eStated Clearly\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eIn 2003, an exceptionally well preserved T. rex leg bone was unearthed in the Cretaceous rocks of Montana. Upon close examination, Dr. Mary Schweitzer found the bone to contain soft tissue inside - tiny blood vessels and proteins! Some...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eIn 2003, an exceptionally well preserved T. rex leg bone was unearthed in the Cretaceous rocks of Montana. Upon close examination, Dr. Mary Schweitzer found the bone to contain soft tissue inside - tiny blood vessels and proteins! Some claim that this is evidence of a young Earth, a recent extinction of the dinosaurs. Could this be, or is there another explanation? ============= Update: since writing the script for this video, a new study came out that weakens the consensus that the tissue found belongs to the original T. \u003ca href='http://rspb.royalsocietypublishing.org/content/284/1855/20170544' target='_blank' rel='nofollow'\u003erex\u003c/a\u003e ============= ======== Support us on \u003ca href='https://www.patreon.com/statedclearly' target='_blank' rel='nofollow'\u003ePatreon\u003c/a\u003e Get a T. rex t-\u003ca href='https://www.redbubble.com/people/statedclearly/works/28105774-gloating-t-rex?asc=t\u0026p=t-shirt' target='_blank' rel='nofollow'\u003eshirt\u003c/a\u003e Visit Dr. Mary Schweitzer’s \u003ca href='https://molecularpaleo.wordpress.ncsu.edu/' target='_blank' rel='nofollow'\u003ewebsite\u003c/a\u003e ======== Papers cited in this animation: ORIGINAL DISCOVERY OF SOFT TISSUE: Soft Tissue Vessels and Cellular Preservation in Tyrannosaurus \u003ca href='http://science.sciencemag.org/content/307/5717/1952' target='_blank' rel='nofollow'\u003erex\u003c/a\u003e Soft tissue and cellular preservation in vertebrate skeletal elements from the Cretaceous to the \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1685849/' target='_blank' rel='nofollow'\u003epresent\u003c/a\u003e CRITIQUE OF DISCOVERY: Dinosaurian Soft Tissues Interpreted as Bacterial \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2483347/' target='_blank' rel='nofollow'\u003eBiofilms\u003c/a\u003e DEFENSES OF DISCOVERY: Influence of Microbial Biofilms on the Preservation of Primary Soft Tissue in Fossil and Extant \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2953520/' target='_blank' rel='nofollow'\u003eArchosaurs\u003c/a\u003e Molecular analyses of dinosaur osteocytes support the presence of endogenous \u003ca href='http://www.thebonejournal.com/article/S8756-3282(12)01318-X/fulltext' target='_blank' rel='nofollow'\u003emolecules\u003c/a\u003e Testing the Hypothesis of Biofilm as a Source for Soft Tissue and Cell-Like Structures Preserved in Dinosaur \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4771714/' target='_blank' rel='nofollow'\u003eBone\u003c/a\u003e 10 million year old frog bones with marrow \u003ca href='https://pubs.geoscienceworld.org/geology/article-abstract/34/8/641/129601/high-fidelity-organic-preservation-of-bone-marrow?redirectedFrom=fulltext' target='_blank' rel='nofollow'\u003epreserved\u003c/a\u003e IRON’S ROLE IN PRESERVATION: A role for iron and oxygen chemistry in preserving soft tissues, cells and molecules from deep \u003ca href='http://rspb.royalsocietypublishing.org/content/281/1775/20132741' target='_blank' rel='nofollow'\u003etime\u003c/a\u003e OTHER DINOSAURS WITH SOFT TISSUE DISCOVERED: Mass Spectrometry and Antibody-Based Characterization of Blood Vessels from Brachylophosaurus \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4768904/' target='_blank' rel='nofollow'\u003ecanadensis\u003c/a\u003e Evidence of preserved collagen in an Early Jurassic sauropodomorph dinosaur revealed by synchrotron FTIR \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5290320/' target='_blank' rel='nofollow'\u003emicrospectroscopy\u003c/a\u003e Soft sheets of fibrillar bone from a fossil of the supraorbital horn of the dinosaur Triceratops \u003ca href='https://www.ncbi.nlm.nih.gov/pubmed/23414624' target='_blank' rel='nofollow'\u003ehorridus\u003c/a\u003e Hemoglobin-derived porphyrins preserved in a Middle Eocene blood-engorged \u003ca href='https://www.ncbi.nlm.nih.gov/pubmed/24127577' target='_blank' rel='nofollow'\u003emosquito\u003c/a\u003e Molecular preservation in Late Cretaceous sauropod dinosaur \u003ca href='https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1599869/' target='_blank' 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