Bees v. Hornets: If You Could Last 10 Minutes Inside a Giant Bee Ball, Raise Your Hand

Honeybee hordes use two weapons - heat and carbon dioxide - to kill their natural enemies, giant hornets.

Japanese honeybees form "bee balls" - mobbing and smothering the predators.

This has previously been referred to as "heat-balling", but a study has now shown that carbon dioxide also plays a role in its lethal effectiveness.

In the journal Naturwissenschaften, the scientists describe how hornets are killed within 10 minutes when they are trapped inside a ball of bees.

Japanese giant hornets, which can be up to 5cm long, are voracious predators that can devastate bees' nests and consume their larvae.

link: BBC NEWS | Science & Environment | Honeybee mobs overpower hornets