I don’t see how the theory that aggressive tendencies were bred out would undermine in any way the hypothesis that intelligence has decreased along with brain size. If we simply bred to be more juvenile as a quick fix for the aggression, that would cause a drop in intelligence. Also I don’t see the data on correlation between brain volume and aggression.
I don’t see how the theory that aggressive tendencies were bred out would undermine in any way the hypothesis that intelligence has decreased along with brain size. If we simply bred to be more juvenile as a quick fix for the aggression, that would cause a drop in intelligence. Also I don’t see the data on correlation between brain volume and aggression.