Search Results: "Proterozoic"

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• 09:56

  Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon

  680 views / 0 likes - added 9 years ago

  Ozone Layer and Eukaryotes Show Up in the Proterozoic Eon. Great Oxygenation Event (Oxygen Catastrophe) More free lessons at: http://www.khanacademy.org/video?v=E1P79uFLCMc

• 13:37 Popular

  The History Of Life On Earth - Crash Course Ecology #1

  1,239 views / 0 likes - added 8 years ago

  With a solid understanding of biology on the small scale under our belts, it's time for the long view - for the next twelve weeks, we'll be learning how the living things that we've studied interact with and influence each other and their environments. Li

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• 01:55 Popular

  Life May Have Existed A Billion Years Earlier Than We Thought!

  871 views / 0 likes - added 7 years ago

  Fossil records stretch back over a billion years, but new research says that complex life may have inhabited Earth even earlier. This Discovery Shows Life Might Have Come From Space - https://youtu.be/TLInopSVn-g Sign Up For The Seeker Newsletter Here - h

• 10:24 Popular

  What the Earth Went Through Before Humans Appeared

  787 views / 2 likes - added 4 years ago

  What did the Earth look like 4.6 billion years ago? Nope, it wasn't the fancy blue and green ball youre used to. It was more like a giant rock covered in molten lava and constantly bombarded by comets and asteroids. There was no sign of life here yet noth

• 12:24

  AGE of UNIVERSE TIME in perspective

  206 views / 0 likes - added 2 years ago

  Time can be difficult to understand, in this video we try to get an idea of its scale. We will simulate that one second is equal to 1 mm3. The rest of the time scales are beyond comprehension.MY WEBSITESPATREON: https://www.patreon.com/metaballstudiosInst

• 05:44

  The Very First Living Thing! | The History of Life! | SciShow Kids

  201 views / 0 likes - added 2 years ago

  Squeaks built a pretend time machine, and he and Mister Brown use their imaginations to travel back in time to learn all about the very first living thing!Host: Anthony Brown----------Love SciShow Kids and want to help support it? Become a Patron on Patre

• 05:28

  Dimetrodon, the Animal With a Sail! | The History of Life! | SciShow Kids

  383 views / 0 likes - added 2 years ago

  Squeaks and Jessi use their pretend time machine to go way back in time and meet a creature even older than dinosaurs, called Dimetrodon! Hosted by: Jessi Knudsen Castaeda----------Love SciShow Kids and want to help support it? Become a Patron on Patreon:

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