They say hard work, dedication and relentless hours in the gym are the recipe for athletic success. But for twins Emily and Abigail Roper, sibling rivalry and their fair share of bickering have been a ...

My identical twin sons have been fiercely competitive with each other from toddlerhood. Their rivalry helped them thrive on the sports field, but brought tension in academics. Although they now attend ...

Nick and Andrew Ciaccia, junior twins on the Reynolds cross-country team, look alike. They also run pretty much alike. "The thing is, they hate to lose each other,” Coach Ryan Solomon said, “so that ...

Drew & Jonathan Scott showcase their twin differences during a competitive paint night that tests skill, patience, and sibling rivalry.