A Brief History of Life: Survival Is Hard

It turns out life may have gotten its start pretty early in Earth’s history, and while the first couple billion years saw several important developments, the period was still dominated by very simple life forms. This is our first installment in a four-part series on the history of life!

For A Brief History of Life, Part 2: https://www.youtube.com/watch?v=kBUNR10wvhw

Hosted by: Michael Aranda
———-
Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
———-
Dooblydoo thanks go to the following Patreon supporters — we couldn’t make SciShow without them! Shout out to Kathy & Tim Philip, Kevin Bealer, Andreas Heydeck, Thomas J., Accalia Elementia, Will and Sonja Marple. James Harshaw, Justin Lentz, Chris Peters, Bader AlGhamdi, Benny, Tim Curwick, Philippe von Bergen, Patrick Merrithew, Fatima Iqbal, Mark Terrio-Cameron, Patrick D. Ashmore, and charles george.
———-
Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow
———-
Looking for SciShow elsewhere on the internet?
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Tumblr: http://scishow.tumblr.com
Instagram: http://instagram.com/thescishow
———-
Sources:
http://www.snowballearth.org/when.html
https://www.coursera.org/learn/astrobiology/lecture/caiUl/conditions-on-the-early-earth

Stepping Stones through Time

http://exploringorigins.org/timeline.html
http://www.fossils-facts-and-finds.com/archaean.html
http://www.ucmp.berkeley.edu/precambrian/bittersprings.html
http://www.ucmp.berkeley.edu/bacteria/cyanofr.html
http://www.ucmp.berkeley.edu/precambrian/archean_hadean.php
http://www.britannica.com/science/Archean-Eon
http://paleobiology.si.edu/geotime/main/htmlversion/archean4.html
http://www.pnas.org/content/112/47/14518.full.pdf
http://onlinelibrary.wiley.com/doi/10.1029/1999JE001134/abstract
http://www.ucmp.berkeley.edu/precambrian/proterozoic.php
http://paleobiology.si.edu/geotime/main/htmlversion/proterozoic5.html
http://www.britannica.com/science/Proterozoic-Eon
http://www.ucmp.berkeley.edu/protista/dinoflagfr.html
http://www.nature.com/nature/journal/v455/n7216/abs/nature07381.html
http://www.pnas.org/content/102/32/11131.abstract
http://www.ncbi.nlm.nih.gov/books/NBK26876/
http://ww2.chemistry.gatech.edu/~lw26/bPublications/LDW_105.pdf
http://www.fossilmuseum.net/Evolution/Endosymbiosis.htm
https://www.sciencedaily.com/releases/2015/03/150310091513.htm
http://www.britannica.com/science/continental-shield
https://books.google.com/books?id=6Qukno9C9fwC&pg=PA196&lpg=PA196&dq=archean+proterozoic+transition&source=bl&ots=1r6t_TlUpz&sig=SDiKMTEZnJ1lJL7CjNO2kRSGCO4&hl=en&sa=X&ved=0ahUKEwjo5eyO_PjMAhUGSFIKHaUIBxUQ6AEIaDAJ#v=onepage&q=archean%20proterozoic%20transition&f=false
http://www.sciencemag.org/news/2015/10/scientists-may-have-found-earliest-evidence-life-earth

Images:
https://commons.wikimedia.org/wiki/File:EscherichiaColi_NIAID.jpg
https://commons.wikimedia.org/wiki/File:Babe_Ruth2.jpg
https://commons.wikimedia.org/wiki/File:Geologic_Clock_with_events_and_periods.svg
https://commons.wikimedia.org/wiki/File:SEUtahStrat.JPG
https://commons.wikimedia.org/wiki/File:Mgn_p39146.png
https://commons.wikimedia.org/wiki/File:Difference_DNA_RNA-EN.svg
http://www.eurekalert.org/pub_releases/2014-02/uow-obo022014.php
https://commons.wikimedia.org/wiki/File:It%27s_Raining_Comets_(Eta_Corvi).jpg
https://commons.wikimedia.org/wiki/File:Moon-craters.jpg
https://commons.wikimedia.org/wiki/File:Stromatolites_hoyt_mcr1.JPG
https://commons.wikimedia.org/wiki/File:Stromatolites_in_Shark_Bay.jpg
https://commons.wikimedia.org/wiki/File:Tolypothrix_(Cyanobacteria).JPG
https://commons.wikimedia.org/wiki/File:Continental_shelf.png
https://commons.wikimedia.org/wiki/File:Banded_Iron_Formation_Barberton.jpg
https://commons.wikimedia.org/wiki/File:AntarcticaDomeCSnow.jpg
https://commons.wikimedia.org/wiki/File:Mahameru-volcano.jpeg
https://commons.wikimedia.org/wiki/File:Celltypes.svg
https://commons.wikimedia.org/wiki/File:Plagiomnium_affine_laminazellen.jpeg
https://commons.wikimedia.org/wiki/File:ColonialFlagellateHypothesis.png