A woman in Georgia has learned her fate for forcing two siblings at a daycare to fight each other, even demonstrating how they should attack, authorities said. Riffat Khalil, 38, was booked in the ...

Eighty percent of U.S. children have a sibling. Siblings can be sources of companionship, play, and joy—as well as jealousy, rivalry, and aggression. A national survey found that one-third of U.S.