In case you're wondering, that cute chatterbox on the playground is probably a Samantha instead of a Sean. Their sentences are more complex and they articulate better. One of the reasons that girls may have advantages over boys when it comes to communication is that females' brains are physically different than males' brains. The corpus callosum, which is the bundle of fibers that link the right and left brain, is bigger in females than in males, and it allows better communication between the two sides of the brain. But biology may not be the only explanation for the more developed language skills of females.
Studies show that parents talk to girl infants more than boy infants.
Child development experts have found that the number of words spoken to an infant each day is the single most important predictor of his or her intelligence, social abilities and academic success in the years to come. Both sexes creep, crawl and finally walk at similar rates, but for such tasks as tying a shoe or negotiating a zipper, girls have the advantage. Gilbert says that girls' superiority with fine motor skills lasts for years. Additionally, when it comes to toilet-training, girls also outpace the boys. All of the parents interviewed for this article said that their girls trained much more quickly then the boys.