What is mass extinction?

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asked May 10, 2017 21.9k views

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Nistix · Answer 1 · 2017-05-15T21:50:43+0000

An extinction event (also known as a mass extinction or biotic crisis) is a widespread and rapid decrease in the amount of life on Earth. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms.

What is mass extinction?

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