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How many species on Earth? Why that's a simple question but hard to answer

  • Written by Tanya Latty, Senior Lecturer, School of Life and Environmental Sciences, University of Sydney
How many species on Earth? Why that's a simple question but hard to answerHow many species still to name? That's a good question.Shutterstock/ju see

You’d think it would be a simple piece of biological accounting – how many distinct species make up life on Earth?

But the answer may come as a bit of a shock.

We simply don’t know.

We know more accurately the number of books in the US Library of Congress...

Read more

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