Origin of Life on Earth and Early Evolution | GEO GIRL

Life's origins: abiotic synthesis of biomolecules (proteins, carbohydrates, lipids, nucleic acids), Miller Urey experiment, RNA world, the warm little pond versus hydrothermal vent hypotheses for where life first evolved, the difference between black smoker and white smoker vents (acidic vs. basic vent fluid, temperature difference, iron sulfide energy, catalysis, redox gradients, pH gradients, proton motive force, methane, archaea extremophiles), the 3 domains of life, endosymbiosis (Lynn Margulis), the earliest prokaryote (bacteria and archaea) and eukaryote fossils (biochemical signatures / isotope ratios, biomarkers / steranes & hopanes, and bacterial mats / stromatolites), and early evolution from the early Precambrian to the Ediacaran fauna to the Cambrian explosion and the major invertebrate and vertebrate animal groups. References: Prothero, D.R. (2013). Bringing Fossils to Life: An Introduction to Paleobiology. Third Edition. Chapter 11: Life’s Origins and Early Evolution. pp. 322-347. Columbia University Press: https://amzn.to/3nU0ada https://pubs.acs.org/doi/pdf/10.1021/... https://pubmed.ncbi.nlm.nih.gov/16642... GEO GIRL Website: https://www.geogirlscience.com/ (visit my website to see all my courses, shop merch, learn more about me, and donate to support the channel if you'd like!) 0:00 Intro/Outline 1:04 Proteins 2:16 Carbohydrates 3:07 Lipids 5:23 Nucleic acids and the RNA world 8:07 Hydrothermal vents 13:02 Domains of Life 13:55 Symbiosis 15:33 Oldest fossils 16:49 First Eukaryotes 17:44 Ediacaran fauna 18:33 Cambrian Explosion 22:06 Invertebrate groups 23:24 Implications for extraterrestrial life Hey there, Earth enthusiast! Check my favorite Earth-friendly products: Bamboo paper towels: https://shrsl.com/3cvkw Compostable trash bags: https://shrsl.com/3cvl0 Bamboo cutlery + straw! : https://shrsl.com/3cwfl Eco-Friendly Tote (great for grocery shopping!): https://shrsl.com/3cwfp Reusable straws + cleaning brushes (my fav!): https://shrsl.com/3cwft Directly offset your carbon footprint with Wren: https://shrsl.com/3d0t2 Non-textbook books I recommend: Oxygen by D. Canfield: https://amzn.to/3gffbCL Brief history of Earth by A. Knoll: https://amzn.to/3w3hC1I Life on young planet by A. Knoll: https://amzn.to/2RBMpny Some assembly required by N. Shubin: https://amzn.to/3w1Ezm2 Your inner fish by N. Shubin: https://amzn.to/3cpw3Wb Oxygen by N. Lane: https://amzn.to/3z4FgwZ Alien Oceans by K. Hand: https://amzn.to/3clMx1l Life's Engines: https://amzn.to/3w1Nhke Tools I use as a geologist/teacher/student: Geology field notebook: https://amzn.to/3lb6dJf Geology rock hammer: https://amzn.to/3DZw8MA Geological compass: https://amzn.to/3hfbdLu Geological hand lens: https://amzn.to/3jXysM5 Camera: https://amzn.to/3l6fGRT Carbon-neutral pencil bag: https://shrsl.com/3cvjv Carbon-neutral backpack: https://shrsl.com/3cvkc Image sources: https://www.zmescience.com/ecology/na... https://www.airspacemag.com/daily-pla... https://www.brainkart.com/article/How... https://pubs.acs.org/doi/pdf/10.1021/... https://www.bioexplorer.net/phospholi... https://pmgbiology.com/2014/10/21/dna... http://www.differencebetween.net/scie... https://www.researchgate.net/figure/G... https://paramedicsworld.com/differenc... https://dontdontoperate.wordpress.com... https://www.simonhanmer52.ca/isua.html    • Stromatolites   https://strangesounds.org/2019/06/cel... https://blog.restek.com/book-review-e... https://earth-chronicles.com/histori/... https://speakingofgeoscience.org/2014... https://www.luckysci.com/2014/09/easy... https://ordinaryearth.com/tag/psychoa... https://www.flickr.com/photos/jsjgeol... https://images-of-elements.com/calciu... http://organismalbio.biosci.gatech.ed... Disclaimer: Links in this description may be affiliate links. If you purchase a product with these links I may receive a small commission, but there is no additional charge to you! Thank you for supporting my channel!