Practice question · Estimate
The end-Permian mass extinction removed an estimated 90 % of marine species. Set the percentage that survived.
Estimate on a scale from None survived (0) to Half survived (50).
Hints
- The survivors are what remains once the extinct fraction is removed.
- Compute 100 minus 90.
Show the answer
10 (answers within ±3 count)
Why
Only about 10 % of marine species survived, the most severe extinction in the record. Recovery took millions of years and produced a radically different fauna, which is why extinctions reshape rather than merely reduce diversity.
Practise Speciation and the Origin of Diversity
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