Here's your twin story for the day. Conjoined twins who were separated by medical procedure and given a 50 percent survival rate are doing well. The two-year-old girls, Yurelia and Fiorella Rocha-Arias, were conjoined at the abdomen and chest, and shared a right atria. The separation surgery took place in November, and now the twins have been cleared to return home to Costa Rica soon. "I feel very happy and very content, because my girls were born anew in this hospital," said the twins' mother through a translator. 

The surgery was no picnic: While there were serious concerns for the life of the girls following the seperation, one of the twins also required additional surgery to correct heart defects. The physicians at Lucille Packard Children's Hospital at Stanford University donated their time to care for the girls, and faith-based non-profit Mending Kids International covered transportation and housing. One doctor estimates 300 people were involved in the procedure. The twins' mom says her girls are still connected to each other: "They always look for each other. They sleep together. They try to be together as often as possible."