AlternateHistoryHub | The Extinction That Caused The Dinosaurs (And If It Never Happened) @AlternateHistoryHub | Uploaded 5 years ago | Updated 17 hours ago
There was once an extinction that wiped out so much life on Earth, it was practically a reset button. So what if that button was never, pushed? Life goes down a far different path.

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Special thanks to my paleontologist friend Matt for helping out, as well as shoutout to TreytheExplainer for inspiring this video.