Mass extinction

Noun

Word Frequency: 0.2

Definitions

1.NounA sharp decrease in the total number of species in a relatively short period of time; specifically, a loss of ∼75% of all species on the planet over a geologically interval of less than 3 million years, as a result of a mass extinction event.

Synonyms

extinction event catastrophic mortality coextinction big five despeciation catastrophism macroevolution endangered species xenocide speciocide pseudoextinction microevolution

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