A beekeeper friend recently had an interesting encounter with what he thought was a swarming, hostile hive of bees. The bees were perched outside the opening to their hive enclosure—a wooden structure in which they lived. My friend thought that a swarm was imminent, but upon closer inspection he realized the bees had moved outside of the hive because it had gotten too hot due to sweltering weather. They weren’t hostile, but simply chilling out in the daytime breeze.