The Japanese honey bee can cook a hornet that invades their nest
The Japanese honey bee has the capability of vibrating their muscles to increase their body temperature. When a Japanese hornet invades their nest, hundreds of bees will swarm the hornet pinning it down. They all kick in their thermal defense and heat up past the threshold of the hornet’s capability of surviving. In just minutes the hornet is cooked to death.
The western or European honey bee doesn’t have this same capability, if a Japanese hornet was to invade one of their nests it could slowly take out one bee at a time until the entire colony is gone.