Killer bees boost coffee yields

Coffee plants are self-pollinating, so they fruit and set seed without the help of pollinating insects. What do you get when bees nevertheless come by the coffee grove and do their thing? Bonanza yields, according to a new report.

David W. Roubik of the Smithsonian Tropical Research Institute in Balboa, Panama, knew that coffee blooms get a lot of traffic from pollinating insects.