2. Africanized Honey Bee
image source: wikimedia.org
This particular creature got it’s own harrowing movie. The Africanized Honey Bee, also known as the Killer Bee, is an experience gone wrong from 1957.
A Brazilian bee keeper tried to breed European and African honey bees, and accidentally allowed some of them to get free. The bees are much more aggressive than honey bees, and tend to swamp aggressively and chase their victims for miles.