Those two-dimensional billboards that dot the landscape of many cities around the world may soon be replaced -- with 3-D holograms. Companies working on this technology say it will revolutionize the way businesses and brands talk to potential customers. VOA's Elizabeth Lee got a glimpse of advertising's future at the recent Consumer Electronics Show in Las Vegas.
According to a global authority on endangered wildlife, nearly one-third of more than 85,000 animal species are in danger of extinction, among them, African zebras and rhinos. Scientists and volunteer activists are increasingly using technology not only to keep them alive but also to support procreation. VOA’s George Putic reports.