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I mean, there are plenty - e.g. mimicking (say, the mother's face's emotions), which are precursors to learning more advanced "features". Also, even walking has many aspects pretrained (I assume it's mostly a musculoskeletal limitation that we can't walk immediately), humans are just born "prematurely" due to our relatively huge heads. Newborn horses can walk immediately without learning.

But there are plenty of non-learned control/movement/sensing in utero that are "pretrained".



Interestingly, there's a bunch of reflexes that also only develop over time.

They are more nature than nurture, but they aren't 'in-born'.

Just like human aren't (usually) born with teeth, but they don't 'learn' to have teeth or pubic hair, either.




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