详细介绍：A single swarm of killer bees can deploy an attack…A single swarm of killer bees can deploy an attack force of 80,000 stingers, chase predators for a quarter of a mile, and bring down a creature as large as a horse. Killer bees have pushed farther north than many scientists thought possible and are now colonizing in the southe United States. Can scientists, beekeepers and exterminators stop the invading hordes?详情