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Earth has 8.7mn species

tech reviews Updated: Aug 25, 2011 01:32 IST

A group of researchers from Canada’s Dalhousie University has estimated that 8.7 million species exist on Earth.

Until now, the number of world’s species, as estimated by the International Union for Conservation of Nature ranged from 3 million to 100 million.

The researchers, however, say 86% of all terrestrial species and 91% of all marine species are yet to be discovered, described and catalogued.

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