Did the Ozone Collapse 252 Million Years Ago?
PBS Eons · History & GK · 12 min · 593 thousand views · published 2026-09-15
Watch Eons: Life and Death on Pangea on the free PBS App: or on the web here: ← use this link if you are outside of the U.S. What was it abo Kallie Moore Michelle Barboza-Ramirez Blake de Pastino eons Hank Green John Gre
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