Great Dying

The Great Dying, also known as the Permian-Triassic Extinction, was a massive event around 252 million years ago when about 90% of Earth's species disappeared. This catastrophic loss wiped out marine and terrestrial life, drastically reshaping ecosystems. Scientists believe it was caused by severe volcanic eruptions, resulting in climate change, ocean acidification, and toxic conditions. This extinction event marks the largest and most severe in Earth’s history, setting the stage for the rise of new species and ecosystems in the subsequent periods.