A New Genetic Survey Reveals that 90 Percent of All Species Evolved at the Same Time
A recent survey of the DNA of over 100,000 of the Earth’s animal species, including modern humans, has yielded a shocking result: 90 percent of all extant species arose at the same time, between 100,000 and 200,000 years ago, upending the assumption that most creatures would have reached their modern forms at different point throughout the planet’s history. The survey also found that genetic diversity between different species doesn’t increase over time–meaning modern humans haven’t diverged genetically over the course of our history from other species at all.
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