We know that stinging is a defensive behavior for honey bees. Some species and breeds of honey bees go about that defensive reaction across a spectrum of aggressiveness. While some are relatively docile or low key to get “fired up”, others are on a seeming hair trigger to explosive response.
What are the determining factors to how aggressively a given type of honey bee or breed of bee will respond? Are they genetic, chemical, or behavioral? Some some combination of some of all of the above.
Someone is looking into the subject and may bee trying to breed a different type of bee based on that.
(Inside Science) — James Nieh, a professor at the University of California, San Diego, has been studying bees for decades. He’s often a go-to expert on bees.“I often get people who ask me, ‘what about those killer bees, those Africanized bees?’ And it turns out that these guys are beneficial in the environment for a variety of reasons, beneficial in the sense that they do better than the European honeybee,” said Nieh.
Source: Taming Aggressive Bees