We Finally Know Why T-Rex Had Those Tiny Arms + Other Discoveries

Support this channel on Patreon to help me make this a full time job: https://www.patreon.com/whatdamath (Unreleased videos, extra footage, DMs, no ads) Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Get a Wonderful Person Tee: https://teespring.com/stores/whatdamath More cool designs are on Amazon: https://amzn.to/3QFIrFX Hello and welcome! My name is Anton and in this video, we will talk about recent T-Rex discoveries and an explanation for why those tiny arms exist Links: https://royalsocietypublishing.org/rspb/article/293/2071/20260528/481779/Drivers-and-mechanisms-of-convergent-forelimb https://www.nature.com/articles/s41598-025-06981-z https://www.carolinajournal.com/historic-discovery-rewrites-t-rex-history/ https://www.nature.com/articles/s41598-026-38600-w https://theconversation.com/tyrannosaurus-rex-our-new-research-shows-it-covered-its-enormous-teeth-with-lips-202761 Previous videos: https://www.youtube.com/watch?v=9TNYSlqyFMI https://www.youtube.com/watch?v=tWq3IrO9K3U https://www.youtube.com/watch?v=9A_jOMVFTpw #trex #dinosaur #biology 0:00 T-rex updates and unexpected discoveries 1:20 So why were its arms so tiny? 3:30 Convergent evolution 5:45 Scotty the t-rex contained blood vessels 6:45 T-rex had cute lips 8:10 It came from America 8:55 Nanotyrannus is not a t-rex 10:10 Implications and conclusions Enjoy and please subscribe Bitcoin/Ethereum to spare? Donate them here to help this channel grow! bc1qnkl3nk0zt7w0xzrgur9pnkcduj7a3xxllcn7d4 or ETH: 0x60f088B10b03115405d313f964BeA93eF0Bd3DbF The hardware used to record these videos: New Camera: https://amzn.to/4pCVINS CPU: https://amzn.to/4qXIaxC Video Card: https://amzn.to/2M1W26C Motherboard: https://amzn.to/2JYGiQQ RAM: https://amzn.to/2Mwy2t4 PSU: https://amzn.to/2LZcrIH Case: https://amzn.to/2MwJZz4 Microphone: https://amzn.to/2t5jTv0 Mixer: https://amzn.to/2JOL0oF Recording and Editing: https://amzn.to/2LX6uvU Some of the above are affiliate links, meaning I would get a (very small) percentage of the price paid. Thank you to all Patreon supporters of this channel Special thanks also goes to all the wonderful supporters of the channel through YouTube Memberships Credit: Mark Garlick www.markgarlick.com Evolutionnumber9 - CC Y SA 4.0 https://en.wikipedia.org/wiki/Tyrannosaurus#/media/File:The_Right_Arm_of_SUE.jpg Ddinodan CC BY 4.0 https://en.wikipedia.org/wiki/Tyrannosaurus#/media/File:Tyrannosaurus_mcraeensis.png/2 abelov2014 CC BY 3.0 https://www.deviantart.com/abelov2014/art/Tyrannosaurus-rex-Nanotyrannus-lancensis-577519535 ScottRobertAnselmo CC BY SA 3.0 https://en.wikipedia.org/wiki/Tyrannosaurus#/media/File:Tyrannosaurus_Rex_Holotype.jpg Fred Wierum CC BY SA 4.0 https://en.wikipedia.org/wiki/Carnotaurus#/media/File:Carnotaurus_Reconstruction_(2022).png Nobu Tamura CC BY 2.5 https://en.wikipedia.org/wiki/Giganotosaurus#/media/File:Giganotosaurus_BW.jpg KoprX CC BY SA 4.0 https://en.wikipedia.org/wiki/Sauropoda#/media/File:Longest_dinosaurs2.svg Matt Celeskey CC BY SA 2.0 https://en.wikipedia.org/wiki/Nanotyrannus#/media/File:Jane_(composite_photo).jpg Licenses used: https://creativecommons.org/licenses/by/4.0/ and relevant Creative Commons licenses