A honeybee colony is under near-constant biological siege, and this cutaway hive lets you turn up three real pressures at once — Varroa destructor mites reproducing in sealed brood cells, small hive beetles multiplying on the comb, and an Asian giant hornet scout probing the entrance — while the colony's own countermeasures try to keep pace.
Japanese honeybees (Apis cerana japonica) can raise a thermal ball to around 46°C — hot enough to kill a giant hornet (which dies near 44–46°C) while the bees themselves tolerate up to about 50°C. Western honeybees form similar balls but are generally less effective, which is one reason hornet predation is such a serious regional threat.
A cutaway honeybee hive under simultaneous pressure from Varroa mites, small hive beetles and an Asian giant hornet — while the colony fights back with hygienic grooming and a lethal thermal-balling defense you can watch form in real time.
Mite and beetle populations climb toward whatever pressure you dial in, eroding a live vitality score, while a hornet attack triggers workers to swarm into a tight, heat-glowing ball whose success depends on colony strength and defense response.
Raise the Varroa and small hive beetle sliders to see infestation spread across the comb, tune colony defense response, then send a hornet and watch whether the ball cooks it or it escapes after raiding the entrance.
A thermal ball of honeybees can reach temperatures that kill a giant hornet but not the bees themselves — one of the few known cases of an insect using coordinated, collective heat as a weapon.