Colony Collapse Disorder USDA-ARS produced video
Bees are disappearing from their hives in dozens of states across the country—and in other countries. What's causing it and how can it be stopped? ARS leads a nationwide effort to find answers. (1:54, 2007).

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Source: http://www.ars.usda.gov/is/video/vnr/ccd.htm

Bee Killer Hunted by Scientists (6 minutes) Discovery News story
ARS researchers Jeff Pettis and Jay Evans at the ARS Bee Research Laboratory in Maryland explain some of the tactics that agency scientists have been using to try to develop a scientific understanding of colony collapse disorder. The disorder, whose cause is not yet known, is blamed for mysterious disappearances of many U.S. bee colonies. (© 2007 Discovery Communications. Used by permission on USDA site. Not distributed by ARS.)

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Source: http://www.ars.usda.gov/is/video/vnr/ccddiscovery.htm