Right Frontal Lobe Enables Social Animal

The largest and most lately-evolved asymmetry in the brain is the right hemisphere's frontal lobe expansion (larger than the left's language area expansion), and this is what gives humans the capacity to be Aristotle's 'social animal'—to read others' minds, understand nuances of complex situations, and detect tiny facial changes lasting hundredths of a second—making the right hemisphere central to socializing, humor, and relationship.