A sibling wrote in a post on Reddit that they asked for their jeans to be replaced after their brother's cat peed on them ...

Modern research echoes Adler’s theses. In simple terms, siblings differentiate themselves to reduce direct competition. If ...

Fern Schumer Chapman and her brother were only 2 1/2 years apart in age, but they were never close as children. As they grew up, the distance yawned between them: Phone calls went unreturned. When ...

Parents can prepare an older child for a new baby by involving them early in the pregnancy. Sibling classes can teach older children how to safely interact with and hold a newborn. Second-time parents ...

Brother and sister relationships have tremendous influence over children’s adjustment and development — about as much as parenting does.

Large litters come at a cost, and domestic piglets are often born into intense competition for both milk and personal space.

Sibling estrangement can be a wrenching, devastating experience, as a brother or sister must adjust to life without a crucial family member. Or, if the relationship was toxic, it can be liberating.

Many children and adolescents have caregiving responsibilities for their siblings. Parents often rely on sibling caregivers to supervise, nurture, and teach their siblings, prepare meals, and ensure ...