so basically, killer bees can also only sting you once, but you won't get stung once unless its the only one their. They have a much more aggressive swarm responce. isoamyl acetate is the chemical signal. If you make one mad or kill one, he secretes that stuff into the air, then all the others go kamikaze on you. It only takes an extremely small amount, so it is very very dangerous. So primative. So raw. It really is fascinating.