The Day the Oceans Died: Fossil Clues From Earth’s Worst Mass Extinction
Imagine standing on a beach where the waves have fallen silent forever. No seagulls cry overhead, no crabs scuttle across the sand, and the water stretches endlessly without a single ripple of life. This nightmare scenario actually happened 252 million years ago during the Permian-Triassic extinction event, when our planet’s oceans became graveyards on an ...











