Before Pangea: How the Supercontinent Nuna Transformed Life on Earth
Before Pangea ever existed, Earth already pulled off a massive experiment called Nuna, and it quietly changed life forever. In this video, we talk about how this ancient supercontinent formed nearly two billion years ago, smashed landmasses together, and completely rewired Earth’s climate, oceans, and early life. I’ll walk you through how Nuna affected oxygen levels, volcanoes, early microbes, and why complex life might not exist without it. We also compare Nuna to later supercontinents to show how Earth keeps remixing the same pieces with wildly different results. It’s a reminder that life on Earth didn’t just adapt to change — it was shaped by continents colliding on a planetary scale 🌍🧬Credit:
Don't Look Up / Hyperobject Industries
BENNU’S JOURNEY: By NASA's Goddard Space Flight Center Conceptual Image Lab - https://svs.gsfc.nasa.gov/12034, https://commons.wikimedia.org/wiki/File:BENNU%E2%80%99S_JOURNEY_-_NASA.webm
Earth: Making of a Planet / Handel Productions
The Time Machine / Warner Bros.
Deep Sea Vents: By NOAA, https://astrobiology.nasa.gov/news/lifes-building-blocks-form-in-replicated-deep-sea-vents/
CC BY 3.0 https://creativecommons.org/licenses/by/3.0:
Miller-Urey experiment: By Courtney Harrington, The Community College Consortium for Bioscience Credentials, https://commons.wikimedia.org/wiki/File:Miller-Urey_experiment_-_Work_by_the_C3BC_consortium,_licensed_under_CC-BY-3.0.webm
CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0:
Timeline showing the Boring Billion: By J. Hirshfeld - Courtesy of Science News, https://commons.wikimedia.org/w/index.php?curid=47417101
CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0:
Life in the Ediacaran sea: By Ryan Somma - https://flic.kr/p/4pHi1t, https://commons.wikimedia.org/w/index.php?curid=24277381
CC BY 4.0 https://creativecommons.org/licenses/by/4.0:
Entstehung und Quellen des Himalaya-Gebirges: By ZDF/Terra X/Faszination Erde/C. Götz-Sobel/O. Rötz/M. Zimmermann/Maximilian Mohr - https://www.zdf.de/dokumentation/terra-x/entstehung-und-quellen-des-himalaya-gebirges-creative-commons-clip-100.html, https://commons.wikimedia.org/wiki/File:Entstehung_und_Quellen_des_Himalaya-Gebirges.webm
Ess2650-sup-0001-2019ea000989-ms09: By Christopher R. Scotese, Ben A. van der Pluijm - https://doi.org/10.1029/2019EA000989, https://commons.wikimedia.org/wiki/File:Ess2650-sup-0001-2019ea000989-ms09.webm
Morphology of clay minerals in the smectite-to-illite conversion series by scanning electron microscopy.: By W.D. Keller, R.C. Reynolds, Atsuyuki Inoue, https://www.researchgate.net/publication/279641339_Morphology_of_clay_minerals_in_the_s[…]o-illite_conversion_series_by_scanning_electron_microscopy
Biodiversité et paysages sous-marins: By Ifremer - https://image.ifremer.fr/data/00700/81166, https://commons.wikimedia.org/wiki/File:Biodiversit%C3%A9_et_paysages_sous-marins_des_s[…]_hydrothermaux_TAG_et_Snake_Pit_(Ifremer_00700-81166).webm
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