You may think there are some big animals on Earth today, but this is nothing compared to the Pliocene period a few million years ago. So-called "megafauna" like the 50-foot megalodon shark and giant ground sloth were common. And suddenly, they weren't. Why?
The post Did a Supernova Kill Earth’s Megafauna 2.5 Million Years Ago? appeared first on ExtremeTech.
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