That Time The Ocean Lost (Almost) All Its Oxygen

Find Bizarre Beasts here! This is the story of how our planet rescued itself from extreme conditions in the Cretaceous Period, at the cost of essentially suffocating the oceans for half-a-million years. ***** PBS Member Stations rely on viewers like you. To support your local station, go to ***** Produced by Complexly for PBS Digital Studios Super special thanks to the following Patreon patrons for helping make Eons possible: Collin Dutrow, Pope John XII, Steven Kern, Aaditya Mehta, AllPizzasArePersonal, John H. Austin, Jr., Kate Huhmann, Alex Hackman, Amanda Ward, Stephen Patterson, Karen Farrell, Trevor Long, Ric, Jason Rostoker, Jonathan Rust, Mary Tevington, Bart & Elke van Iersel - De Jong, William Craig II, Irene Wood, Derek Helling, WilCatRhClPPh33, Mark Talbott-Williams, Nomi Alchin, Duane Westhoff, Hillary Ryde-Collins, Swad Swadlo, Yu Mei, Albert Folsom, Oscar Amoros Huguet, Heathe Kyle Yeakle