Third in the five-part series. Travels the globe as a large portion of the world's languages are surveyed-25 percent of which are spoken by a mere 0.1 percent of the Earth's population. Moving from Africa to Oceania and up to Asia and then west to Europe and across the ocean to the Americas, how many languages are spoken in each region, the characteristics they share, and misconceptions about them are assessed. Historical background on some of the key languages of the regions is included as well. The commentary of Salikoko Mufwene, coeditor of "The Ecology of Language Evolution"; Larry Hyman, of UC Berkeley; Hua Lin, of the University of Victoria; Harvard University's Jay Jasanoff; and Lyle Campbell, of the University of Utah, is featured. Accessibility options on the DVD are: (1) audio description, (2) expanded audio description, (3) English SDH subtitles, (4) closed captions.