Research suggests that all humans (and many other species as well!) are born with an intuitive number sense. Oddly, this intuitive number sense is also correlated with “higher” math abilities such as performance on standardized tests. And although it is innate to all humans, it also improves with practice, and humans who have spent a great deal of time thinking about math often do better on tests of intuitive number sense.
Image Source: Halberda et al 2008
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