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 ...

A juvenile great tit solves a foraging puzzle by pushing a sliding door to the left while being observed by two other young birds. (Sonja Wild, UC Davis) Siblings are special. Be they protector or ...

Having to share your toys, television, or time with your siblings as a child feels like a form of torture at the time. What’s the cleverest way a kid could possibly get around those rules? One person ...

Siblings are special. Be they protector or tormentor, friend or foe, the relationship between siblings is like no other. They witness each other’s childhoods — sharing parents, history, secrets and ...