Meet the "hot defensive bee ball," one of the craziest tactics in the animal kingdom

Japanese honey bees have a unique defensive trait against the enormous — and sting-proof — giant hornet. They form a ‘‘hot defensive bee ball'', enveloping and overheating the insect, and now a Japanese research team has looked into what happens in their brains when they do so. »3/15/12 10:30am3/15/12 10:30am