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PBS Eons
They were the first vertebrates to go airborne
***** PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons ***** Eons is a production of Complexly for PBS Digital Studios. Super special thanks to the following Patreon patrons for helping make Eons possible: Scezumin, Mike Cumings, Jr., NassauLinda, Chuck Smith, DexcilaDou, Martin G ...
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