Please Explain: Bees

The honeybees is just one species of bee, and they often get the most attention, but there are an estimated 20,000 different species of bees in the world. Bees play an important role in pollinating plants, and many have highly developed methods of socialization and communication. We'll learn all about bees, and the latest on Colony Collapse Disorder, with Bryan Danforth, professor of entomology at Cornell University, and Maryann Frazier, senior extension associate in the Department of Entomology at Penn State University.