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Response to Comments on “Can We Name Earth’s Species Before They Go Extinct?”

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Science  19 Jul 2013:
Vol. 341, Issue 6143, pp. 237
DOI: 10.1126/science.1237381

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Mora et al. disputed that most species will be discovered before they go extinct, but not our main recommendations to accelerate species’ discoveries. We show that our conclusions would be unaltered by discoveries of more microscopic species and reinforce our estimates of species description and extinction rates, that taxonomic effort has never been greater, and that there are 2 to 8 million species on Earth.

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