The forests of east Asia are home to giant honeybees. Each one is about an inch in length and together, they can build nests that measure a few metres across. The bees have an aggressive temperament and a reputation for being among the most dangerous of stinging insects. Within mere seconds, they can mobilise a swarm of aggressive defenders to repel marauding birds or mammals. But against wasps, they use a subtler and altogether more surprising defence – they do a Mexican wave.

Wasps, and hornets in particular, are major predators of bees and the largest ones can make even the giant bees look puny. Some invade hives and steal grubs, while others swoop in and pluck loitering bees from the