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! If you liked this video, check out more videos about natural history and paleontology on SciShow s sister channel, Eons: https://www.youtube.com/eons For A Brief History of Life Part 2: https://youtu.be/kBUNR10wvhw Part 3: https://youtu.be/oGVFVX6NTLs Part 4: https://youtu.be/b8sYfyQrs_Q Hosted by: Michael Aranda ---------- SciShow has a spinoff podcast! It s called SciShow Tangents. Check it out at http://www.scishowtangents.org ---------- 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 http://www.astrobio.net/news-exclusive/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