http://thegeekgroup.org/ - Archaeopteryx: the first bird! Except when it isn't. We'll have to look at how cladistics works to understand why this little fluffy dinosaur is so hotly debated. Like our videos? Consider supporting them through Patreon! https://www.patreon.com/thegeekgroup Video Links: 4:25 https://www.youtube.com/watch?v=MeRfspn67j8 5:18 https://commons.wikimedia.org/wiki/File:Archaeopteryx_lithographica_(Cast_of_London_Specimen).jpg 5:23 https://en.wikipedia.org/wiki/File:ArchaeopteryxTheUrvogelFeather.jpg 5:31 http://rstl.royalsocietypublishing.org/content/153/33 6:20 https://en.wikipedia.org/wiki/File:Archaeopteryx_lithographica_(Berlin_specimen).jpg 6:26 http://www.biodiversitylibrary.org/item/54181#page/1/mode/1up 10:17 http://www.nature.com/nature/journal/v497/n7447/full/nature12059.html 12;46 http://www.nature.com/nature/journal/v511/n7507/full/nature13467.html 12:33 https://www.researchgate.net/publication/235418713_Lift_devices_in_the_flight_of_Archaeopteryx 13:33 https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2006.00245.x#81508719 13:33 https://en.wikipedia.org/wiki/File:Archaeopteryx_lithographica_Thermopolis.jpg 14:44 https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2006.00245.x#81508719 15:19 http://www.nature.com/articles/ncomms14576 c.f. https://www.youtube.com/watch?v=8gCKXPuyASA 17:07 http://www.nature.com/articles/ncomms1642 CORRECTION: TheDubstepAddict has pointed out that, as of 2016, the isolated feather is not thought to be from Archaeopteryx, so coloration is still up in the air. https://hub.hku.hk/handle/10722/233288 19:25 http://science.sciencemag.org/content/335/6073/1215.full 21:45 https://www.flickr.com/photos/kkoshy/8566795379/ 22:12 http://www.cell.com/current-biology/pdf/S0960-9822(12)01194-3.pdf 31:25 http://science.sciencemag.org/content/345/6196/562.full c.f http://theropoda.blogspot.com/2014/07/50-milioni-di-anni-di-miniaturizzazione.html & https://blogs.scientificamerican.com/tetrapod-zoology/50-million-years-of-incredible-shrinking-theropod-dinosaurs/ If you would like to send in a dinosaur for Steve to look at, please ship it to this address: Steven Bellettini c/o: The Geek Group 902 NW Leonard Street Grand Rapids, MI 49504 Subscribe for more dinos, explosions, science videos, and general geek related awesomeness. Based in Grand Rapids, Michigan, The Geek Group provides access to science, technology, engineering and math by developing programming and facilities for individuals and institutions to learn, explore, innovate and play at an independent pace according to their needs. The Geek Group has many thousands of members scattered across the globe, in every state in the US and one hundred and forty-two countries. Come help us build Awesome!