Great Dying
Definition
Also known as the "Permian–Triassic (P–Tr) extinction event", it refers to an extreme biodiversity crisis about 252 million years ago when up to 96% of all marine species and more than two-thirds of terrestrial species died out.
Analogy
Think about your school being so full one day that there are students everywhere you look. Then imagine coming back tomorrow and finding only four students left out of every hundred. That’s how drastic “The Great Dying” was!
Related terms
Biodiversity Crisis: A fast-paced decline in biological diversity on earth often linked with human activities or natural disasters such as volcanic eruptions or asteroid impacts.
Paleozoic Era: The era of geologic time from about 540 to 250 million years ago. The Permian-Triassic extinction event marked the end of this era.
Recovery Fauna: The surviving species that repopulate an ecosystem after a mass extinction event.
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