Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...

Sickle cell disease only occurs when both parents contribute the trait, and mostly in those of African descent. Where did it come from? How did it evolve? Tony Allison, a molecular biologist, noticed a connection between sickle cell and...

Some words are best left unspoken.  Words matter, according to Benjamin Zander, conductor, teacher, and lecturer. To illustrate his point, Zander recounts a story told to him by a survivor of Auschwitz. As a result of her experience...