If i remember correctly, they’re mini-swarming to warm that fucker up and make him die of heat stroke
They literally heat him up to about 1 degree less of the temperature that they can die from. Thank you college lol
Alright, this is really cute, but they’re not “avenging” anything. The scent of a killed honeybee makes the others go into defensive mode against the threat, that’s why they all start moving fast. Bees don’t exhibit care for each other.
And yes, they’re going to cook the hornet to death. They vibrate themselves and produce heat, and the hornet, trapped under their weight, slowly dies of heat stroke.