Jessica Constant may look like a typical teenager, but at 14, she's already a college student and plans to attend medical school. But Jessica's interests are not solely confined to academics. Jessica is also an accomplished cellist. Along with her two older brothers, she makes up "The Constant Trio." The three siblings have performed at the Kennedy Center in Washington, D.C. Remarkably, neither parent has any musical talent themselves and they are awed by the artistry of their children.

What mysterious set of circumstances contributes to a child having such extraordinary talents? According to David Henry Feldman, Professor of Child Development at Tufts University, "Prodigies seem to be a combination of timing and talent and the right circumstances, all occurring during the same moment and sustaining itself for at least ten years. So, a prodigy is a child with unusual talent who appears in a society that has value for that talent."

Once in a great while, a child prodigy will be born with even a rarer type of genius, one which expresses itself in many areas at once. At age 12, Albert Wong is already an accomplished violinist, teaches himself a wide variety of subjects from college textbooks and is famous in the world of music as a concert pianist. Albert first displayed his mysterious musical talents when he was just 3 years old. Yet by the time he was five, he had already won the grand prize in a Dallas piano competition for children up to 18. Eventually, Albert came under the tutelage of renowned former prodigy Earl Wild. At age 10, Albert recorded his first CD.

According to Dr. Feldman, no one knows whether the causes are genetic, evolutionary, cultural, historical, or a combination of all of those things. At this point in time, the exact cause remains a mystery.