#7 Africanized Honey Bee
Also known as the Killer Bee, the Africanized Bees are not the bees you want to bother. Once they are irritated (which can happen very easily), they become overwhelmingly defensive and attack aggressively; they work together in large numbers when it comes to defending themselves and fight till they eliminate their threats. Unfortunately, humans are no exceptions to the case – the allergic reaction caused by their venom can cause death.