Sex between a boy and a girl
A first study, published in March 2008 found that one subdivision of the ventral prefrontal cortex—an area involved in social cognition and interpersonal judgment—is proportionally larger in women, compared to men.
(Men’s brains are about 10 percent larger than women’s, overall, so any comparison of specific brain regions must be scaled in proportion to this difference.) This subdivision, known as the straight gyrus (SG), is a narrow strip of cerebral cortex running along the midline on the undersurface of the frontal lobe.
Red-eared sliders (Trachemys scripta elegans) are some of the most frequently spotted turtles around, in their natural sluggish-water environments as well as in captive habitats.
If you come across one of these family Emydidae creatures in the wild, you might be able to confound your pals by specifying the sex.
On the other hand, sex differences that grow larger through childhood are likely shaped by social learning, a consequence of the very different lifestyle, culture and training that boys and girls experience in every human society.
At first glance, studies of the brain seem to offer a way out of this age-old nature/nurture dilemma.
While some gender selection methods claim to be highly successful, they often disregard other methods, claiming their own to be more accurate.