At least 99% of all the species that ever existed have left no trace in the fossil record.

At least 99% of all the species that ever existed have left no trace in the fossil record.

Using information gathered by paleontologists and the history of evolution, it’s been estimated that 99.9% of all species are extinct. That’s not all of the species living here on the Planet today. It’s actually of all the species who have lived on Earth at all.

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