Known also as the yak-killer, this wasp kills more people in Japan each year than all the other wild animals combined. Besides the usual tissue damaging bee and wasp stuff, its sting also contains a potent neurotoxin that can kill people who aren't even allergic.
A voracious hunter, the giant hornet doesn't bother with his sting for hunting. Instead he just shreds his prey with massive, crushing mandibles.
At least, this is what happens with most bees. The japanese honeybee (Apis cerana japonica) is not such an easy target.
You see, when a hornet scout approaches a japanese honeybee hive he is preceded by a powerful tracking pheromone. Detecting this scent, the bees go into immediate action.
The air around the hornet is sucked dry of precious oxygen and driven to a sweltering 117 degrees fahrenheit. The hornet is baked to death and the bees are now safe.
This is just a wonderful example of coevolution. As the hornets evolved into terrible killing machines, the bees evolved a behavioral antidote.
Can anyone reading this doubt that the earth is truly a wonderful place? There is so much cool stuff out there, I doubt a single lifetime could ever be enough to explore it all.