US Biologist Creates Buzz About Bees

Honey-bee populations around the world have been hit hard by a mysterious phenomenon called Colony Collapse Disorder which has seen numbers drop dramatically and raised fears about the impact on agriculture and food prices. But a biologist in the US is also concerned about native bees, so he's creating a photographic inventory of all 4000 North American species in case they too begin to disappear. Rob Muir has more. Credit to Reuters. Courtesy USGS.