The jealousy provoked by a sibling rival has been described in detail.

I Map The sibling rival of Estoril, Lisbon's slick casino aims its chips at a younger crowd.

The sibling rivals of "New Year's Eve" are fraternal twins named Heather and Erica.

In their parallel efforts, the Buchanans are far from sibling rivals.

The chemistry between the two friends and self-described sibling rivals is conveyed perfectly on those two tracks.

Charles doesn't care for sibling rivals for the Bishop's favour.

Her subjects include serial whiners, chronic fighters, obsessive sibling rivals and one aggressive 5-year-old boy who attacks the cafeteria employees at school.

Even then, Reich and Glass reminded Serra of "sibling rivals."

In Shakespeare's plays, sibling rivals for power don't seek psychological help; they kill each other.

"As I grew older," she adds, "he was sometimes jealous of me as if I were a sibling rival for her affections."