You handle your daily responsibilities, manage a household, and navigate the complexities of adult life with a level head. But the moment your sibling shows up, that put-together persona often ...

Sibling rivalry might not unique to humans. New scientific research shows that baboon siblings in southern Africa also feel jealousy toward each other. Sibling rivalry can be intense between young ...

Why kids fight: Sibling rivalry stems from evolutionary drives, competition for resources, and differences in personality, birth order, and family circumstances. Conflict as growth: When handled with ...