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Number of Animal Species

How many animal species are there?

10.6 million.

The Global Biodiversity Outlook published in 2001 by the Convention on Biological Diversity estimates a total of 10.6 million animal species on Earth. Of this number, only 1.32 million species have been discovered and described. Approximately 8 million of the estimated 10.6 million animal species are insects.

This fact is verified on : February 23, 2010.





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