Sirf 18,000 hayn ? I thought may be in millions !
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There are approximately 8.7 million species on Earth. The number mentioned in the above posted photo image isn’t a scientifically proven estimate. It is just a similie.
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Replying to @TausiM14 @moosvi1
And here's some information about how that figure was calculated - as well as answers to 12 other frequently asked questions: bit.ly/AndyPurvisFAQ

Jun 1, 2019 · 9:11 AM UTC

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