Firstborn Kids: The Brains of the Family?

Given the choice, 9-year-old Carlyle Quinn would spend all day with his microscope, while younger brother Max would opt for the electric guitar. There's no telling how these brothers, living in Brooklyn, N.Y., will grow up. But according to groundbreaking new research, it is very likely Carlyle has the highest IQ. The study, published in the current issue of the journal Science, included more than 240,000 Norwegian men who took intelligence tests when they entered the military. In most...Full Story
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