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.
Termite swarms occur when winged adults look for new colonies. Subterranean termites swarm when it is warm and during the mornings. Drywood termites swarm at night or after dusk. After swarming, termites will loose their wings and mate. Once mating has taken place, they seek out sites to build colonies.