Boys and girls really are different — and it starts within hours of being born

Babies of different sexes are different from birth, a study has revealed (Picture: Shutterstock / ANNA GRANT)

The saying goes that men are from Mars and women are from Venus — and it turns out those differences develop sooner than you might think.

According to new research, babies show certain personality traits, depending on their sex, within just hours of being born.

The study, by the University of ...