"two neuroscientists say that a now-extinct race of humans had big eyes, child-like faces, and an average intelligence of around 150, making them geniuses among homo sapiens."
just came across this article. kinda old, but i didn't see any previous posts on dc.
Ancient megalithic stonework and hi-tech machining of South America
Check out the Youtube vids of Brien Foerster, featuring the best documentation of the incredible megalithic stonework and techno-machine evidence of the pre-Incan cultures of South America that I've ever seen: