Eighty percent of American children grow up with at least one brother or sister—more than the number of kids living with their fathers. Yet, for more than a century, psychological research has largely ...

Some families grow apart as kids get older, while others remain remarkably close. What makes the difference is the atmosphere created at home during childhood. Parents who raise siblings who stay ...

For many animals, siblings are a key component of their social environment during early life. Previous research has shown that the early social environment is important, but it has not yet been clear ...

The sibling relationship is an enduring bond that has a profound influence throughout a person’s lifetime. Our sibling relationships are typically the longest relationships we have with another person ...

Two siblings who once fought "all the time" but have now become travel buddies as adults have delighted users on TikTok. Madelief Vis (@madeliefvis), a 22-year-old part-time content creator, shared a ...