What Caused The Cambrian Explosion?

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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:-
/ @somethingincredible
Video & script edited by Pete Kelly. Check out his channel:-
/ @petekellyhistory
Narration by David Kelly. Check out his channel:-
/ @voicesofthepast