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.
When insects produce a swarm, also known as a reproductive flight, it is part of the seasonal activity of certain social insects, most importantly termites and ants. Normally insect swarms occur outdoors on a still, warm day. But if an ant or termite nest is close enough to a home, swarms may occur indoors.