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Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
3 results for "end-Permian"
O_2_01 — Volcanism, Supervolcanoes, and Geological Catastrophism
Volcanic eruptions are among the most powerful forces on Earth, capable of altering global climate, triggering mass extinctions, collapsing civilizations, and imprinting themselves on human mythology for millennia. The T
R_5_20 — Mass Extinction Recovery: Post-Crisis Adaptive Radiation
Life on Earth has survived at least five major mass extinctions — the "Big Five" — each eliminating 75–96% of species. Yet each catastrophe was followed by a remarkable recovery phase in which surviving lineages radiated
R_1_11 — Extinction, Recovery, and Adaptive Radiation
The history of life is punctuated by mass extinction events — catastrophic biodiversity losses that eliminate >75% of species in geologically brief intervals — followed by recovery phases and adaptive radiations during w
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