Our best examples of this phenomenon come in the form of feral children (of which there are thankfully few); in these cases, growing up separated from society has resulted in a level of intelligence comparable to our Great Ape cousins (with limited ability to learn further).
Can you point to a well documented example of this?
Can you point to a well documented example of this?
Wikipedia has a number of examples (https://en.wikipedia.org/wiki/Feral_child), though to be transparent I haven’t done much research on the level of documentation of each.