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.
On the appointed day, and only the bees know, half the hive of worker bees, along with the queen, fly out from the hive to a nearby branch. . A swarm of honey bees can range in size from 4 to 5 thousand to 20 to 30 thousand. Immediately after leaving the hive the swarm will gather often on a tree limb.