Oldest? Youngest? Middle? Here’s What Your Birth Order Says About You

Are firstborn kids really destined to be more successful than their siblings? Do all middle children have jealousy issues? If you're the baby of the family, are you as naturally hilarious as you think you are ? According to research, there's evidence to back up these clichés. So relax, parents: Nature may triumph over nurture?or at least steal its favorite toy just to watch it scream. RELATED: Kids Prefer Their Puppy Over Their Siblings, According to Science