1 The primary cause of COPD is tobacco smoke (through tobacco use or second-hand smoke).  The disease now affects men and women almost equally, due in part to increased tobacco use among women in high-income countries.
Swarming is the process by which a new honey bee colony is formed when the queen bee leaves the colony with a large group of worker bees. In the prime swarm, about 60% of the worker bees leave the original hive location with the old queen. This swarm can contain thousands to tens of thousands of bees.
Most subterranean termites swarm in the spring or summer, while drywood termites typically swarm in the late summer or fall. Some termite species may swarm as late as November in warmer climates. Flying ants have antennae that are bent in the middle, a pair of long wings and a pair of short wings.