This isn't what one person says, it's what a wide body of scientists say. And guessing that a larger brain probably belongs to a male doesn’t indicate much nor does noting the effects of life in a highly gendered culture on a plastic brain. Even the small structural differences that are there (such as a part to enervate the penis) give no indication of being indicative of different aptitudes or abilities.
"But surprisingly, researchers have found very few notable differences between boys' and girls' brains, and even some of the widely claimed differences between adult men's and women's brains—such as the idea that women have stronger connections between left and right hemispheres—have not held up to rigorous research. Yes, males have larger brains (and heads) than females—from birth through old age. And girls' brains finish growing earlier than boys' do. But neither of these findings explains why boys are more active and girls more verbal or reveals a plausible basis for the consistent gaps in their reading, writing and science test scores that have parents and teachers up in arms.
Brain differences are indisputably biological, but they are not necessarily fixed, or hardwired. The crucial, often overlooked fact is that experience itself changes brain structure and function. Neuroscientists call this shaping plasticity, and it is the basis of all learning and much of children's mental development.
The different ways parents raise boys and girls may similarly leave their stamps on children’s developing brains.”
