Stories abound of twins who can predict when one is about to call the other on the phone. Some twins have claimed that one can feel the pain of the other's injury, or that they can communicate without speaking.
To those claims of synergy between twins, add another innate ability: Oregon sprinters Venessa D'Arpino and Kerissa D'Arpino say their bond as twins helps them in the 4x100-meter relay.
"We don't practice handoffs a whole lot, because we're in different training groups," Venessa said recently. And so, when we get to the track it's just like, We're going to make it happen.