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

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Bamboo paper towels: https://shrsl.com/3cvkw
Compostable trash bags: https://shrsl.com/3cvl0
Bamboo cutlery + straw! : https://shrsl.com/3cwfl
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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...

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