What Caused The Cambrian Explosion?

If you’re struggling, consider therapy with BetterHelp #ad. Click https://betterhelp.com/historyofearth for a 10% discount on your first month of therapy with a credentialed professional specific to your needs. 9:48 - Part 1 - The Cambrian Explosion 29:40 - Part 2 - A Real Explosion? 44:51 - Part 3 - Animals From The Earth 1:07:27 - Part 4 - Tipping Points Written & researched by Leila Battison. Check out her channel:- https://www.youtube.com/channel/UCXIk7euOGq6jkptjTzEz5kQ Video & script edited by Pete Kelly. Check out his channel:- https://www.youtube.com/channel/UCMq-bTjlaTZhaohEracnN6w Narration by David Kelly. Check out his channel:- https://www.youtube.com/channel/UCqoGR_EedlhKDVuWNwYWRbg Thumbnail Art by Ettore Mazza -- Image Credits:- Matteo De Stefano/MUSE Avancna https://en.wikipedia.org/wiki/Trilobo... Oleg Kuznetsov - 3depix - http://3depix.com/ 3D Epix Inc. http://www.ediacaran.org/fractofusus.... F. S. Dunn, C. G. Kenchington, L. A. Parry, J. W. Clark, R. S. Kendall & P. R. Wilby https://www.nature.com/articles/s4155... Spriggina ovata, South Australia. Image: Dr Alex Liu Daderot - Own work https://en.wikipedia.org/wiki/Spriggi... spriggina.html https://en.wikipedia.org/wiki/Dickins... Aleksey Nagovitsyn (Alnagov https://commons.wikimedia.org/wiki/File:Maotianshan_shale_outcrop.JPG#filelinks https://commons.wikimedia.org/wiki/File:Alan_Turing_(1912-1954)_in_1936_at_Princeton_University.jpg https://en.wikipedia.org/wiki/Trilobite#/media/File:Scutelluid_trilobite.jpg https://en.wikipedia.org/wiki/Trilobite#/media/File:Cambrian_Trilobite_Olenoides_Mt._Stephen.jpg https://en.wikipedia.org/wiki/Tardigrade http://www.ediacaran.org/charnia-maso... Photo: Bob Thomas/Popperfoto via Getty Images/Getty Images