In he Neanderthal’s case brain size does not correlate with intelligence. The Neanderthal’s brain was dominated by the areas of the brain associated with motion and vision and amounted to the neurological equivalent of a military night vision system. The Neanderthal spent thousands of years on this Earth without ever coming up with anything comparable to the fancy tools, weapons, and artwork of Cro Magnon man.
Hogwash, we were created in God’s image since the get go.
Humans since the beginning have used all kinds of implements and other devices they came up with.